# Havoc Motorcycles

> Canadian maker of billet aluminum Havoc Roar stereo systems, billet and King Spoke wheels, and fat tire kits for Harley-Davidson motorcycles. Products are sold through Shopify at shop.havoc-motorcycles.com.

## Pages

- [Havoc Roar Black Friday Sale | 15% Off Harley Stereo Kits](https://havoc-motorcycles.com/black-friday): Save 15% on all 16 Havoc Roar systems through November 28, 2026 at 11:59 PM ET. Watch the bench test. Permanent free US shipping with customs and duties prepaid.
- [Havoc Motorcycles | Billet Wheels, Fat Tire Kits & Harley Audio](https://havoc-motorcycles.com/): Canadian-built billet wheels, King Spoke wheels, fat tire kits, and Havoc Roar Stereo audio systems for Harley-Davidson Road King, Softail, and Touring motorcycles.
- [About Us - Havoc Motorcycles | From Custom Shop to Manufacturer](https://havoc-motorcycles.com/about-us): Learn about Havoc Motorcycles' journey from a small custom shop in 2014 to a fully registered Canadian motorcycle manufacturer with its own WMI code.
- [Canadian-Built Custom Motorcycles | Havoc](https://havoc-motorcycles.com/motorcycles): Discover Havoc Motorcycles, a Canadian motorcycle manufacturer behind the 124SS and 124FTS. Explore our custom V-twin motorcycles and what's coming next.
- [Aquatic AV Marine-Grade Audio for Harley-Davidson | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av): Choose Aquatic AV audio by fitment — 1998–2013 fairings, 2014+ fairings, Road King, Softail, and marine. Marine-grade stereo systems built to perform.
- [Aquatic AV Stereo Kits for 1998–2013 Harley-Davidson | Havoc](https://havoc-motorcycles.com/stereos/aquatic-av/1998-2013-harley): Shop Aquatic AV audio systems designed for classic 1998–2013 Harley-Davidson touring fairings. Complete stereo kits, head units, speakers, amps, and accessories.
- [Aquatic AV Stereo Kits for 2014+ Harley-Davidson Touring | Havoc](https://havoc-motorcycles.com/stereos/aquatic-av/2014-newer-harley): Shop Aquatic AV audio systems engineered for 2014+ Harley-Davidson batwing and shark-nose fairings. Source units, speakers, amps, and accessories.
- [Aquatic AV Marine Audio Systems | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/marine): Waterproof Aquatic AV marine audio systems for boats, pontoons, and personal watercraft. Stereo kits, head units, speakers, and amplifiers built for the water.
- [Rockford Fosgate Harley-Davidson Audio Systems | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/rockford-fosgate): Shop Rockford Fosgate audio for Harley-Davidson Touring motorcycles: Stage kits, PMX head units, fairing and saddlebag speakers, subwoofers, and amp installation kits.
- [Soundstream Harley-Davidson Audio & Head Units | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/soundstream): Shop Soundstream and Precision Power Harley-Davidson audio: CarPlay head units, fairing speakers, loaded lowers, saddlebag subwoofers, amplifiers, and install kits.
- [Certifications - Canadian Motorcycle Manufacturer | Havoc Motorcycles](https://havoc-motorcycles.com/certifications): Havoc Motorcycles is a registered Canadian motorcycle manufacturer with Transport Canada compliance, proper VINs, and finance-ready credentials.
- [Contact Us - Get in Touch | Havoc Motorcycles](https://havoc-motorcycles.com/contact): Have questions about fitment, ordering, or your build? Contact Havoc Motorcycles and we'll point you in the right direction.
- [Show Off Your Build. Win $250. - Havoc Roar Stereo](https://havoc-motorcycles.com/customer-builds): Installed a Havoc Roar Stereo on your Road King? Upload photos here and you could win $250 cash in our quarterly draw – plus get your bike featured in the Havoc customer gallery.
- [Havoc Roar & Aquatic AV Harley Stereo Dealers & Installers](https://havoc-motorcycles.com/dealers): Find authorized Havoc Roar Stereo dealers and installers for Harley-Davidson Road King and Softail. Professional installation of high-power motorcycle audio systems, Aquatic AV electronics, Road-Lock amp brackets and Bad Dad-equipped builds.
- [Become a Havoc Motorcycles Dealer](https://havoc-motorcycles.com/dealers/become-a-dealer): Apply to become an authorized Havoc Motorcycles dealer and offer premium wheels, fat tire kits, and stereo systems to your customers.
- [Online Dealer Application | Havoc Motorcycles](https://havoc-motorcycles.com/dealers/become-a-dealer/apply-online): Apply online to become an authorized Havoc Motorcycles dealer.
- [Havoc Roar Stereo FAQ | Harley-Davidson Audio Questions](https://havoc-motorcycles.com/faq): Get answers to common questions about Havoc Roar Stereo systems for Harley-Davidson Road King and Softail motorcycles. Installation, waterproofing, power requirements, and more.
- [Havoc Touring Fat Tire Kits - Complete Front End Conversions | Havoc Motorcycles](https://havoc-motorcycles.com/fat-tire-kits): Complete fat tire front end kits for Harley Touring. True 180 front in 18", 21", or 23". No guesswork—everything supplied, fitment verified.
- [General Terms - Havoc Motorcycles](https://havoc-motorcycles.com/general-terms): Commercial terms and conditions for Havoc Motorcycles, including website usage, product information, warranties, and customer responsibilities.
- [Havoc Roar Stereo Installation Guides | Havoc Motorcycles](https://havoc-motorcycles.com/installation-guides): Harley-Davidson audio installation guides and instruction manuals for Havoc Roar Stereo head units, speakers, amplifiers, and complete audio kits.
- [Harley Handlebar Speaker Installation | HRS 3.5" Billet Speaker Pods](https://havoc-motorcycles.com/installation-guides/3-5-inch-handlebar-speakers): Mount and wire HRS 3.5" billet handlebar speaker pods on Road King and Softail bars: orientation, shims for 1", 1.25" and 1.5" bars, torque, wiring and sound tuning.
- [Harley Highway Bar Speaker Installation | HRS 6.5" Speaker Pods](https://havoc-motorcycles.com/installation-guides/6-5-inch-highway-bar-speakers): Install HRS 6.5" highway bar speakers on a Harley: left/right pod identification, mounting and shims, torque, wire management and amplifier speaker wiring by colour.
- [Harley Saddlebag Speaker Installation | Aquatic AV Ultra 6x9" Kit HG099](https://havoc-motorcycles.com/installation-guides/ultra-saddlebag-speaker-kit-hg099): Install the Aquatic AV Ultra 6x9" saddlebag lid speaker kit (HG099) on 1998-2013 Harley-Davidson Touring: cutout template, grill and mounting plate, cable routing, speaker wiring pinout and tuning.
- [Road King Bluetooth Stereo Installation Guide | GP1-RK Head Unit](https://havoc-motorcycles.com/installation-guides/gp1-rk-road-king-head-unit): Step-by-step Road King Bluetooth stereo install for the Havoc GP1-RK head unit: nacelle teardown, wire routing, power harness, toggle switch and re-assembly. 1998–2013 and 2014–later.
- [Softail Bluetooth Stereo Installation Guide | GP1-ST Head Unit](https://havoc-motorcycles.com/installation-guides/gp1-st-softail-head-unit): Install the Havoc GP1-ST gauge stereo on a Harley Softail: supporting the bars, handlebar clamp replacement and torque, wire routing, swing test and powering the head unit.
- [Road King 6-Speaker Stereo Install | AD1200.4 Amplifier (924.6 Kit)](https://havoc-motorcycles.com/installation-guides/road-king-roadlock-ad1200-4-six-speaker): Road King 924.6 install: RoadLock bracket and AD1200.4 amplifier powering HS116 NEO highway bar speakers and HG099/HG100 6x9 saddlebag speakers, with gain and crossover settings.
- [Road King Amplifier Installation | RoadLock Bracket & AD300.2](https://havoc-motorcycles.com/installation-guides/road-king-roadlock-ad300-2): Road King motorcycle amplifier install: saddlebag drilling and grommets, RoadLock bracket mounting, RCA and speaker routing, battery connection and AD300.2 gain settings.
- [Road King 4-Speaker Amplifier Install | Highway Bar & Saddlebag Speakers](https://havoc-motorcycles.com/installation-guides/road-king-roadlock-ad500-4-highway-bar-saddlebag): 4-speaker Road King install: RoadLock bracket and AD500.4 amplifier powering HS113 ULTRA+ RGB highway bar speakers and HG099/HG100 6x9 saddlebag speakers.
- [Road King Speaker Amplifier Install | AD500.4 Bridged to HS116 NEO](https://havoc-motorcycles.com/installation-guides/road-king-roadlock-ad500-4-neo-bridged): Install the RoadLock bracket and AD500.4 amplifier bridged to two HS116 NEO highway bar speakers on a Road King: drilling, mounting, bridged speaker wiring and gain settings.
- [Softail Amplifier Installation | RoadLock Bracket & AD300.2](https://havoc-motorcycles.com/installation-guides/softail-roadlock-ad300-2): Softail motorcycle amplifier install: RoadLock bracket and AD300.2 Micro amplifier with HS113 ULTRA+ RGB speakers, including no-drill routing options and gain settings.
- [Softail 4-Channel Amplifier Install | RoadLock Bracket & AD500.4](https://havoc-motorcycles.com/installation-guides/softail-roadlock-ad500-4): Softail install guide for the RoadLock bracket and AD500.4 amplifier, with no-drill routing options, speaker wiring, battery connection and gain settings.
- [Payment Policy - Havoc Motorcycles](https://havoc-motorcycles.com/payment-policy): Learn about our payment methods, order verification process, and shipping address policies at Havoc Motorcycles.
- [Product Registration – Havoc Roar Stereo](https://havoc-motorcycles.com/product-registration): Register your Havoc Roar Stereo system to activate warranty and support.
- [Quality System - Our Commitment to Total Quality | Havoc Motorcycles](https://havoc-motorcycles.com/quality-policy): Havoc Motorcycles builds high-performance machines with quality built-in at every step, from engineering through final road test.
- [Refund & Returns Policy - Havoc Motorcycles](https://havoc-motorcycles.com/returns-policy): Learn about our refund and returns policy, return authorization process, and conditions for returning items to Havoc Motorcycles.
- [Road-Lock Amplifier Brackets for Harley Road King & Softail | Havoc](https://havoc-motorcycles.com/road-lock): Purpose-built amplifier mounting brackets for unfaired Harley-Davidson Road King and Softail models. Engineered for secure, cooled, serviceable amp installs with Havoc Roar Stereo systems.
- [Tech Center - Engineering & Technical Resources | Havoc Motorcycles](https://havoc-motorcycles.com/tech): How Havoc Motorcycles approaches product development: materials, fitment, performance, aesthetics and installation. Technical resources for Havoc audio and wheel engineering.
- [Shipping Policy - Havoc Motorcycles](https://havoc-motorcycles.com/shipping-policy): Learn about our shipping policy, processing times, carriers, and delivery information for Canada, United States, and international orders.
- [Harley-Davidson Stereo Finder - Find Your Havoc Roar Stereo | Havoc Motorcycles](https://havoc-motorcycles.com/stereo-finder): Interactive stereo finder for Harley-Davidson riders. Pick your bike, fitment, speaker count, locations, finish and power to get matched to the right Havoc Roar Stereo system with live pricing.
- [Havoc Roar Stereo Systems for Harley Road King & Softail](https://havoc-motorcycles.com/stereos): Premium billet stereo systems for Harley-Davidson Road King and Softail. 2, 4 & 6-speaker kits from 144W to 1,104W powered by Aquatic AV marine-grade electronics.
- [Havoc Billet Nacelle-Cap Stereo for Harley-Davidson Road King](https://havoc-motorcycles.com/stereos/billet-nacelle-cap-stereo): Factory-clean control of your music, right where it belongs. The Havoc Handlebar Nacelle-Cap Stereo integrates the award-winning Aquatic AV GP1 Bluetooth Gauge Stereo.
- [Billet Speaker Enclosures for Harley-Davidson Road King and Softail](https://havoc-motorcycles.com/stereos/billet-speaker-enclosures): CNC-machined 6061-T6 billet speaker enclosures for Harley-Davidson Road King and Softail. 3.5-inch handlebar pods and 6.5-inch highway bar pods styled to follow the Road King nacelle spear line.
- [Stereo Components - Havoc Roar Stereo | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/components): Shop Aquatic AV stereo components, Havoc billet housings, Road-Lock amplifier brackets, and wiring harnesses for Harley-Davidson motorcycles.
- [HRS 144.2 Handlebar Stereo for Dyna & Sportster | Havoc](https://havoc-motorcycles.com/stereos/dyna-sportster-custom): Add real sound to your Harley Dyna, Sportster, FXR or custom build with the HRS 144.2 handlebar stereo kit. Bluetooth head unit, Compact 3.5 inch pods, clean highway-volume audio.
- [Optional RGB Illumination for Havoc Roar Stereo Systems](https://havoc-motorcycles.com/stereos/rgb-illumination): App-controlled RGB illumination for Havoc Roar Stereo highway bar pods and saddlebag speaker lids. Coordinate front-and-rear color lighting on your Harley-Davidson Road King.
- [Road King Stereo Systems - Havoc Roar Stereo](https://havoc-motorcycles.com/stereos/road-king): Havoc Roar Stereo systems for Harley-Davidson Road King. 2, 4 & 6-speaker kits with billet bar, highway bar and saddlebag speakers, Road-Lock amp brackets and Aquatic AV electronics for real sound at speed.
- [Softail Stereo Systems - Havoc Roar Stereo](https://havoc-motorcycles.com/stereos/softail): Havoc Roar Stereo systems for Harley-Davidson Softail. 2 & 4-speaker kits with billet handlebar and highway bar pods, Road-Lock amp brackets and Aquatic AV marine electronics for powerful sound on naked Softails.
- [Softail Handlebar Billet Stereo - Havoc Roar Stereo](https://havoc-motorcycles.com/stereos/softail-handlebar-billet-stereo): Havoc Billet Handlebar Stereo for Harley-Davidson Softail Models. Factory-clean control of your music with the Aquatic AV GP1 Bluetooth Gauge Stereo integrated into precision CNC-machined billet aluminum.
- [Havoc Audio Tech Center | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/tech): Motorcycle audio technical resources covering system design, speaker fitment, installation, wiring, and tuning from Havoc Motorcycles.
- [Behind the Design of Havoc Roar Stereos | Havoc Audio Tech](https://havoc-motorcycles.com/stereos/tech/behind-the-design): Havoc Motorcycles founder Jarrod Wiener explains the engineering behind Havoc Roar Stereos: the Aquatic AV GP1 head unit, machined billet housings, integrated speaker clamps, the Road-Lock saddlebag amplifier bracket, and the 241 Hz differentiated sound stage.
- [Aquatic AV MP5 vs MP5+ for 1998–2013 Harleys | Havoc Audio Tech](https://havoc-motorcycles.com/stereos/tech/aquatic-av-mp5-vs-mp5-plus): MP5 vs MP5+ for 1998–2013 Harley touring: same built-in amp, why the MP5+ is the better amp foundation, SiriusXM options, the 23-pin vs 35-pin plug, and tour pack speaker wiring.
- [Flashing 2014+ Harley Audio Head Units | Havoc Audio Tech](https://havoc-motorcycles.com/stereos/tech/flashing-2014-harley-audio-head-units): Why 2014+ Harley Boom! Box radios must be flashed for aftermarket amps, how the flash is done, dealer vs independent tools, CarPlay mic bypass, T-harnesses, LOCs, wiring and replacement radios.
- [Motorcycle Audio & Batteries | Havoc Audio Tech](https://havoc-motorcycles.com/stereos/tech/motorcycle-audio-and-batteries): Why a bike that starts can still struggle with audio: battery reserve capacity, voltage stability, AGM and lithium batteries, chargers and amplifier wiring.
- [HRS System Design: How Havoc Roar Stereos Are Engineered | Havoc](https://havoc-motorcycles.com/stereos/tech/road-king-audio-guide): How the Havoc Roar Stereo is engineered for unfaired Harleys: frequency differentiation across handlebar, highway-bar and saddlebag stages, channel architecture, and full system integration.
- [Loudest Highway Bar Speakers for Unfaired Harleys | Havoc](https://havoc-motorcycles.com/stereos/tech/highway-bar-speaker-enclosure-design): Why 6.5" speakers and a 2.0L sealed aluminum enclosure beat stock 5.25" pods on Road King and Softail highway bars — the engineering, explained.
- [Havoc Roar Stereo Videos | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/videos): Watch Havoc Roar Stereo systems in action on Harley-Davidson motorcycles, with more system walkthroughs, installation videos and customer builds coming soon.
- [Havoc Roar Warranty | 2-Year Audio & Electronics Coverage](https://havoc-motorcycles.com/warranty): We stand behind the products we design and the systems we build. This Limited Warranty explains what's covered, for how long, and how to get service.
- [Havoc Fat Spoke Warranty & Care Guide | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/fat-spoke-warranty): Care instructions and 12-month limited warranty terms for Havoc chrome steel fat spoke motorcycle wheels, including the customer loyalty replacement program.
- [Havoc Billet Wheels Warranty | Lifetime Structural Coverage](https://havoc-motorcycles.com/wheels/billet-wheels-warranty): Read the lifetime structural and 12-month powder coat warranty terms for Havoc billet motorcycle wheels, including installation and proof-of-purchase requirements.
- [Havoc Wheels - Precision Billet & King Spoke Wheels](https://havoc-motorcycles.com/wheels): Premium motorcycle wheels engineered for precision. Choose between CNC-machined billet aluminum or classic King Spoke fat-spoke wheels.
- [Billet Aluminum Wheels - CNC Machined Precision | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/billet): Premium CNC-machined billet aluminum wheels from 6061-T6 aluminum. Industry-leading runout tolerances and precision engineering.
- [King Spoke Wheels | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/king-spoke): Classic King Spoke fat-spoke wheels engineered with modern quality standards. Bold style meets proper engineering.
- [BST Carbon Fiber Wheels for Harley-Davidson | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/bst): One-piece BST carbon fiber wheels for Harley-Davidson Touring, Softail, Dyna, Sportster and V-Rod. 40–60% less unsprung weight. Special order from Havoc.
- [Metalsport Wheels for Harley-Davidson | 2D & 3D | Havoc](https://havoc-motorcycles.com/wheels/metalsport): Metalsport 2D and 3D billet wheels for Harley-Davidson, 16" to 34", including Chip Foose designs. Cush drive and ABS options. Free shipping in Canada.
- [RC Components Forged Wheels for Harley-Davidson | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/rc-components): RC Components forged wheel styles for Harley-Davidson, in chrome, black, Eclipse and Eclipse Prism. Free shipping in Canada, no brokerage fees.
- [Metal Artopia Wheels for Harley-Davidson | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/metal-artopia): 21 Metal Artopia wheel designs for Harley-Davidson in Black, Chrome and Contrast, 16" to 26". Free shipping in Canada, no brokerage fees.
- [Ultima Wheels for Harley-Davidson | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/ultima): Shop Ultima billet wheels for Harley-Davidson. Kool Kat, Manhattan and Vortex designs in 16" to 26" sizes for Touring, Softail, Dyna and Sportster.
- [Wheels Support - Fitment, Shipping & Quotes | Havoc Wheels](https://havoc-motorcycles.com/wheels/support): Get fitment help, shipping info, warranty details, answers to common questions, and request a quote for Havoc billet wheels. Straight answers from builders.
- [Harley-Davidson Wheel Tech Centre: Fitment & Installation | Havoc](https://havoc-motorcycles.com/wheels/tech): Practical fitment and installation guidance for aftermarket wheels on Harley-Davidson motorcycles: sizes by model, brake and belt alignment, pulley installation, big fronts, fat fronts and wheel care.
- [Billet vs Cast Motorcycle Wheels: Materials, Tolerances & What You Feel on the Road](https://havoc-motorcycles.com/wheels/tech/billet-vs-cast): Billet vs cast isn't just about looks. Learn how manufacturing route, alloy choice (6061 vs casting alloys), tolerance control, and inspection affect consistency, fitment, and ride feel—especially on heavy bikes.
- [Runout Tolerances: Why Thousandths Matter | Havoc Wheels](https://havoc-motorcycles.com/wheels/tech/runout-tolerances): Learn what wheel runout is, why thousandths matter, how hub/rotor stack-up affects wobble, and why Havoc measures, verifies, and won't ship "good enough."
- [Sizing & Fitment: 16 vs 18 vs 21 Wheels (Front/Rear) Explained](https://havoc-motorcycles.com/wheels/tech/sizing-fitment-front-vs-rear-16-18-21-explained): Confused about 21" fronts and 18" rears? Use real tire diameters to predict stance, fender clearance, and steering feel—plus when you should (and shouldn't) lower.
- [Harley-Davidson Wheel Installation Guide | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-wheel-installation-guide): Installation guidance for Havoc Harley-Davidson wheels, including spacers, brake alignment, tire installation and professional installation requirements.
- [Dry-Fit: When to Dry Fit Wheels Before the Tires Go On | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/dry-fit-motorcycle-wheels-before-mounting-tires): Will a wheel from another Harley model fit your bike? How to dry-fit custom and used wheels with rotors and pulley before mounting tires, and why it protects your return rights.
- [Harley-Davidson Touring Wheel and Tire Sizes by Model, 2000 to Present | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-touring-wheel-and-tire-sizes): Stock wheel and tire sizes for every Harley-Davidson Touring model from 2000 to the present, plus the largest rim and tire that fit without chassis modification.
- [Harley Softail Wheel & Tire Size Chart, 2000–2026 | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-softail-wheel-and-tire-sizes): Stock wheel and tire sizes for every Harley-Davidson Softail model from 2000 to 2026, plus the largest rim and tire each can take without chassis modification.
- [How to Read Motorcycle Tire and Rim Sizes | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/how-to-read-motorcycle-tire-sizes): What 130/60-19, 18 x 5.5, TL and 180/55-18 really mean — and how to calculate a tire's overall diameter before you buy a custom wheel.
- [Motorcycle Tire & Rim Width Fitment Chart | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/motorcycle-tire-rim-width-fitment-chart): Which tire fits which rim width: a complete front and rear motorcycle tire-to-rim fitment chart from 15 to 30 inches, and why aftermarket half-size Harley wheels take the same tire as factory wheels.
- [Centering Your Brake Calipers After a Wheel Change | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-brake-caliper-alignment-shims): Why brake calipers must be checked and shimmed whenever new wheels or rotors are installed on a Harley, and how to center the rotor between the pads.
- [Caliper and Rotor Clearance: Radial Spokes, Floating Buttons | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/brake-caliper-clearance-custom-wheels): Solving caliper-to-spoke contact on 2018 and newer Softails and floating rotor button contact after installing custom Harley wheels.
- [Polished Stainless Rotors: Pads, Noise and Finish | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/polished-stainless-brake-rotors-harley): Why our rotors are polished stainless rather than chrome, which brake pads work best, and how to cure brake noise and glazing on a Harley.
- [Harley Wheel Fastener Guide: Sizes, Torque and Threadlocker | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-rotor-and-pulley-bolt-torque): Rotor and pulley bolt sizes, torque values and threadlocker for Harley-Davidson wheels, plus why you should never force a fastener into a wheel hub.
- [Pulley Bolts and Aluminum Hubs: Getting Bolt Length Right | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-pulley-bolt-length-installation): How to measure pulley bolt length for a blind-hole aluminum wheel hub, avoid bottoming out, center the pulley and torque it correctly.
- [Rear Pulley Spacers and Belt Alignment on Harley-Davidson Motorcycles | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-pulley-spacer-belt-alignment): Why custom rear wheels sometimes need a pulley spacer, how to measure rotor-to-pulley distance, Softail spacer examples, fitting pre-1999 pulleys, and curing belt noise or belt tracking to one side after a wheel change.
- [Fitting Modern Wheels to Pre-2000 Harley-Davidson Motorcycles | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/pre-2000-harley-wheel-conversion): Why pre-2000 Harleys with tapered wheel bearings need different spacers and rotors to run modern sealed-bearing wheels, for Softail and Touring models.
- [Which Way Does the Wheel Go? Tire Direction, Dual Discs and ABS | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/motorcycle-wheel-direction-rotation-arrow): Dual-disc Harley front wheels can be mounted two ways — only one is right. How to read the tire rotation arrow, get the ABS right (and clear an ABS light after new wheels), and mount a rear tire on the front.
- [Tubes, Tubeless and Balancing: Billet and Spoke Wheels | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/tubeless-vs-tube-motorcycle-spoke-wheels): When to run a tube in a Harley wheel, what TL and TT mean, how sealed spoke wheels work, balancing beads versus wheel weights, having tires mounted on billet and chrome wheels without scratches, and fitting TPMS to spoke wheels.
- [Installing a Custom Single-Disc Front Wheel on a Softail | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/softail-custom-front-wheel-installation): What to know before installing a custom single-disc front wheel on a Harley Softail: axle spacers, Heritage and Deluxe hub caps, caliper alignment, fenders, and why we don't recommend converting from dual discs to a single disc.
- [Going Bigger Up Front: 21-, 23- and 26-Inch Harley Wheels | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-21-23-26-inch-front-wheel-guide): What changes when you fit a 21, 23 or 26-inch front wheel to a Harley: fenders, raked triple trees, 21-inch fronts on 2014-and-later baggers, headlight and fairing angle, ABS lines, and curing front-end wobble or head shake.
- [Rake, Trail & Raked Trees for Big Harley Front Wheels | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-rake-trail-raked-triple-trees-big-wheels): Why 21 x 5.5 and 23-inch fronts need raked triple trees, why 23 x 5.5 and 26-inch fronts also need frame rake, and exactly what each wheel does to rake and trail.
- [180mm Fat Front Tire Kits for Harley-Davidson Touring Models | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/harley-bagger-fat-front-tire-kit): Installation and fitment guide for 180mm fat front tire kits on Harley baggers: tire size limits, fork clearance, fender installation, hardware and fairing lowering.
- [Caring for Chrome Steel Wheels | Havoc Motorcycles](https://havoc-motorcycles.com/wheels/tech/how-to-care-for-chrome-motorcycle-wheels): How to clean and protect chrome steel motorcycle wheels: brake dust, road salt, waxing, storage and early-spring riding.
- [Aquatic AV Tech Docs — Head Unit, Amplifier & Speaker Specs | Havoc](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs): Aquatic AV Harley-Davidson specifications and datasheets for head units, amplifiers and speakers.
- [Aquatic AV HR400 Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/hr400): 7" touch-enabled head unit with Apple CarPlay and Bluetooth. Plug & play using the Harley-Davidson factory mounting bracket and wiring connections, with existing handlebar controls.
- [Aquatic AV AQ-MP-5UBT-HS Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/aq-mp-5ubt-hs): SiriusXM Ready waterproof stereo with Bluetooth & USB, 3" color screen and handlebar controls.
- [Aquatic AV AQ-MP-5BT-H Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/aq-mp-5bt-h): Uses existing Harley-Davidson mounting location, screws and screw holes. Plug & Play with existing Harley-Davidson wiring harness.
- [Aquatic AV AD300.2 Micro Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/ad300-2): Digital Class D bridgeable 2-channel amplifier for Harley-Davidson motorcycles, IP65.
- [Aquatic AV AD480.4 Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/ad480-4): Class D 4-channel amplifier with bridge mode, gain control and electronic crossover, IPX4.
- [Aquatic AV AD500.4 Micro Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/ad500-4): 4/3/2-channel amplifier, 2 Ohm & 4 Ohm stable, IP67.
- [Aquatic AV AD1200.4 Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/ad1200-4): Class D digital 4-channel amplifier with bridge mode, IP65.
- [Aquatic AV HS113 Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/hs113): Full range 6.5" RGB speaker, amplifier compatible, includes adaptor rings (AQ-HD-RING).
- [Aquatic AV HS116 Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/hs116): SPL coaxial 6.5" speaker with neodymium tweeter and woofer magnets, amplifier compatible.
- [Aquatic AV HG200 Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/hg200): Full-range 2-way coaxial 6x9 saddlebag speaker with RGB cone illumination.
- [Aquatic AV HS118 Specs & Datasheet | Havoc Motorcycles](https://havoc-motorcycles.com/stereos/aquatic-av/tech-docs/hs118): Full-range 2-way coaxial 6x9 saddlebag speaker with N38H neodymium magnets.
- [Rockford Fosgate Tech Docs — Harley Manuals & Tuning | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs): Rockford Fosgate Harley-Davidson manuals, specifications, installation instructions and tuning guides.
- [Rockford Fosgate HD24-STG2 / HD24-STG3 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/hd24-stage-2-stage-3-tuning): 2024+ Harley-Davidson tuning instructions for HD24-STG2 and HD24-STG3 systems.
- [Rockford Fosgate TMS69BL9813 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tms69bl9813): Installation and operation instructions for the TMS69BL9813 saddlebag lid speaker kit.
- [Rockford Fosgate TMS69BL14 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tms69bl14): Installation and operation instructions for the TMS69BL14 saddlebag lid speaker kit.
- [Rockford Fosgate TMS57 / TMS69 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tms57-tms69): Installation, operation and specifications for TMS57 and TMS69 speakers.
- [Rockford Fosgate PMX-HD9813 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/pmx-hd9813): Installation, operation and specifications for the PMX-HD9813 direct-fit Harley-Davidson receiver.
- [Rockford Fosgate HD14-SBSUB Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/hd14-sbsub): Installation and operation instructions for the HD14-SBSUB motorcycle subwoofer kit.
- [Rockford Fosgate TMS14-65 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tms14-65): Installation, operation and specifications for TMS14-65 speakers.
- [Rockford Fosgate TMS24-65 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tms24-65): Installation, operation and specifications for TMS24-65 speakers.
- [Rockford Fosgate TMS24-69 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tms24-69): Installation, operation and specifications for TMS24-69 saddlebag speakers.
- [Rockford Fosgate HD24BL69 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/hd24bl69): Installation instructions for the HD24BL69 saddlebag lid cut-in kit.
- [Rockford Fosgate TMA-1000X4i Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tma-1000x4i): Quick-start instructions and manufacturer specifications for the TMA-1000X4i amplifier.
- [Rockford Fosgate RFK-HD24 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/rfk-hd24): Installation instructions for the RFK-HD24 amplifier installation kit.
- [Rockford Fosgate TMS14-57 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tms14-57): Installation, operation and specifications for TMS14-57 speakers.
- [Rockford Fosgate HD14BL69 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/hd14bl69): Installation instructions for the HD14BL69 saddlebag speaker kit.
- [Rockford Fosgate TM400X4ad Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tm400x4ad-1998-2013-factory-radio): Amplifier tuning guide for a TM400X4ad with the Harman-Kardon factory radio.
- [Rockford Fosgate RFK-HD9813 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tm400x4ad-rfk-hd9813): Amplifier tuning guide for second-generation kits using the RFK-HD9813 harness kit.
- [Rockford Fosgate PMX-HD9813 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/pmx-hd9813-stage-tuning): Radio tuning guide for PMX-HD9813 Stage 1, Stage 2 and Stage 3 systems.
- [Rockford Fosgate M5-800X4 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/m5-road-king-tuning): M5-800X4 tuning and Bluetooth pairing guide for Road King systems.
- [Rockford Fosgate TM400X4ad Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/tm400x4ad-2014): TM400X4ad amplifier tuning guide for 2014 and newer Harley-Davidson systems.
- [Rockford Fosgate M5 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/m5-2014-factory-radio): M5 amplifier tuning guide for 2014+ systems using the factory radio.
- [Rockford Fosgate RFK-HD14 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/rfk-hd14-tuning): Amplifier tuning guide for systems using the RFK-HD14 installation kit.
- [Rockford Fosgate HD14-SBSUB Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/hd14-sbsub-front-tuning): Amplifier tuning guide for HD14-SBSUB systems with front speakers.
- [Rockford Fosgate M5 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/m5-9813-factory-radio): M5 amplifier tuning guide for 1998–2013 systems using the factory radio.
- [Rockford Fosgate M5 / PMX-HD9813 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/m5-pmx-hd9813-tuning): M5 amplifier tuning guide for systems using the PMX-HD9813 source unit.
- [Rockford Fosgate HD9813RK / HD14RK Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/road-king-tuning): Amplifier tuning guide for HD9813RK and HD14RK Road King systems.
- [Rockford Fosgate PMX-HD14 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/rockford-fosgate/tech-docs/pmx-hd14): Owner's manual for the PMX-HD14 digital media receiver: controls, wiring diagram, settings, Street Party Mode, SiriusXM and specifications.
- [Soundstream Tech Docs — Harley Head Unit Manuals | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs): Soundstream and Precision Power Harley-Davidson manuals, specifications and installation instructions.
- [Soundstream PPHD13.AWK / PPHD14.AWK Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/pphd13-awk-pphd14-awk): Amplifier installation instructions for Harley-Davidson Touring motorcycles.
- [Soundstream PPHD13.LVF / PPHD14.LVF Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/pphd13-lvf-pphd14-lvf): Installation instructions for lower vented fairings with 6.5-inch speakers for 1998–2013 and 2014+ Touring motorcycles.
- [Soundstream PPHD13.522 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/pphd13-522): Installation instructions for 5.25-inch fairing speakers on 1998–2013 Harley-Davidson Touring motorcycles.
- [Soundstream PPHD14.652 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/pphd14-652): Installation instructions for 6.5-inch fairing speakers on 2014+ Harley-Davidson Touring motorcycles.
- [Soundstream HDHU.14Si Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/hdhu-14si): Owner’s manual and specifications for the HDHU.14Si head unit.
- [Soundstream HDHU.9813RG Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/hdhu-9813rg): Owner’s manual and specifications for the HDHU.9813RG head unit.
- [Soundstream HDHU.9813SG Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/hdhu-9813sg): Owner’s manual and specifications for the HDHU.9813SG head unit.
- [Soundstream HDHU.14+ Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/hdhu-14): Owner’s manual and specifications for the HDHU.14+ head unit.
- [Soundstream PPHD13.SBS / PPHD14.SBS Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/pphd13-sbs-pphd14-sbs): Saddlebag lid speaker installation instructions for Harley-Davidson Touring motorcycles.
- [Soundstream PPHD SBWx Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/pphd-sbwx): Installation and operation instructions for powered Harley-Davidson Touring saddlebag subwoofers.
- [Soundstream WHD14+ V2 Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/whd14-v2): Owner’s manual and specifications for the navigation, wireless CarPlay, wireless Android Auto and Maestro-compatible head unit.
- [Soundstream WHD.SG Manual & Specs | Havoc](https://havoc-motorcycles.com/stereos/soundstream/tech-docs/whd-sg): Owner’s manual for the WHD.SG head unit for 1998–2013 Street Glide motorcycles.