BC BUILD / STREET TWIN DEATH VALLEY

Shop now for the ultimate upgrade with our Triumph Master Cylinder Reservoir replacement, priced at $126.95. Perfectly compatible with Triumph models from 2004 to 2025, including the Bonneville SE, Scrambler 900, Speed Twin 900, Street Cup, Street Scrambler 900, Street Twin, and Thruxton 900, this reservoir will take your motorcycle to the next level.

Replace your bulky white reservoir and featured stock components with this sleek, high-performance solution. Crafted from billet aluminum, it’s not only stronger but lighter than stock reservoirs, and the anodized black finish offers superior wear and corrosion resistance, keeping your bike looking sharp for years.

The direct mount to the Nissin Master Cylinder not only enhances aesthetics but also improves handlebar control. Some models even feature a fluid level window, making it easier to stay on top of maintenance. The Brembo O-ring or similar seal ensures no leaks, providing peace of mind. Plus, the kit includes everything you need for installation: billet reservoir cup, Nissin reservoir adapter, Brembo O-ring, and fluid diaphragm.

Designed with maintenance features that reduce fogging and leaks, this reservoir ensures long-term reliability. Whether you’re replacing your rear disc brake reservoir or upgrading your rubber hose, this kit offers a clean, efficient setup.

Don’t miss out—earn 1269 Rider Rewards points with your purchase. Upgrade your ride today and experience the perfect blend of style, performance, and durability with this top-tier master cylinder reservoir replacement.

INSTALLATION GUIDE

Install Guide (PDF)

• How to Install Direct Mount Reservoir

Shock Bolt Dress Up Kit for Triumph Motorcycles

Upgrade your Triumph motorcycle with the Shock Hardware Dress Up Kit, a premium solution for enhanced style and performance. Priced at $34.44, this shock hardware kit is built for durability and precision.

Compatible with models like the America (2002-2017) and Bonneville T100 (2001-2025), the kit ensures a perfect fit with its CNC-machined, high-quality 6061-T6 aluminum components. This precision-engineered kit includes shock mounting bolts, bolt & washer, and M8-1.25x30 Flat Socket Cap Screws, making it the ideal bolt dress up kit for reliable functionality and style.

Features:

• CNC Machined from High-Quality Aluminum for strength and refined appearance.
• Lightweight & Durable construction for long-lasting use.
• Shock Mounting Kit that personalizes your rear shock hardware.
• Easy Installation with seamless bolt replacements.

Available in polished aluminum, anodized black, clear anodize, and chrome-plated finishes, the kit allows full customization of your shock bolt kit for a standout look. Replace stock components with upgraded hardware that enhances both performance and aesthetics.

Earn 344 Rider Rewards Points with your purchase. Upgrade your motorcycle with this shock hardware dress up kit today and enjoy high-quality hardware designed for lasting performance and sleek design.

Print Install Guide (PDF)

• How to Install Shock Hardware Dressup Kit for Triumph Bonneville T120

Upgrade your Triumph’s look with the British Customs Plug & Play Fender Eliminator Kit, a stylish, streamlined solution that enhances both form and function. Designed to fit seamlessly across various models, including the Bonneville T120 (SE/T120 Black/T100/T100 Black), Street Scrambler, Street Twin, Street Cup, Speed Twin, Thruxton, Scrambler 900, this fender eliminator replaces the bulky stock rear fender to create a bold, open-rear look that shaves off unnecessary weight while boosting performance on the street. Made from durable material 304 stainless steel, it’s engineered to withstand the rigors of the road, enhancing both durability and agility for lightweight handling and smoother rides.

For those seeking a Triumph Bonneville rear fender eliminator kit, this kit provides seamless integration. Its plug-and-play harness allows for easy setup, with straightforward bolt-on installation and included LED components for both the tail light and license plate(7x4) illumination. Choose between a sleek smoked or classic red Cateye tail light lens to match your style. This kit not only offers a minimalist design but also accommodates the removal of factory turn indicators, giving your bike that sharp, customized edge while maintaining street legality.

Ideal for any model, Triumph Bonneville T120 tail tidy enthusiasts, as well as those riding the Street Scrambler or Scrambler 900, the British Customs Fender Eliminator Kit is your go-to for an effortless, customized look that’s engineered for lasting performance. Transform your bike today with this premium kit, built in the USA and designed for riders who value style and simplicity. Buy now and ride with confidence, knowing your Triumph is tailored to perfection.

Bonneville T100/T120 Note:
Does not work with the stock T100/T120 seat as it shrouds over & covers the tail light.

Liquid Cooled Thruxton Note:
The kit for LC Thruxton models will features an additional housing unit underneath the underplate for the seat latch cable

Print Install Guide (PDF)

• How to Install Plug & Play Fender Eliminator Kit on Triumph Street Scrambler

Shock Mount Plug & Play Retro Turn Signals

The retro style turn signals from K&S Technologies were selected for their build quality and superior aesthetics over factory indicators. These are one of the most popular lighting upgrades for Triumph Modern Classics. Offered in Halogen or LED.

Features:

• Aluminum bodied turn signals
• Halogen version, LED version here
• Mounting brackets cut & finished & wiring assembly all done in the USA
• Plug & play harness; just bolt-on, plug in turn signal connectors into harness & play.
• Non-DOT/E-MARK

Bulb Specs:

• Air Cooled = 23W/12V
• Liquid Cooled = 10W/12V

Plug & Play Kits: We've taken the guesswork out by combining these turn signals with our high quality turn signal brackets specifically to work on Triumph Modern Classic models with our tail light kits.

FITMENT NOTES

Street Scrambler Note: After 2019, the Street Scrambler had a revision in design on the lower triple tree, with a rectifier being relocated elsewhere resulting in no more mounting holes for the Rectifier mounted Turn Signal Kits (or High Fender Bracket)

Thruxton R/RS Note: *The Shockmount version of Retro Turn Signal housing does not work with Thruxton R/RS as it comes into contact with the rear shock reservoir under load. The only Shockmount Turn Signal Kit that'll work in our offering is the Flush Mount Micro LED at the moment here

Compatibility Note: This is a plug & play kit meant to work directly with our tail lights with no other parts needed. Just bolt-on, plug & play. For the turn signals alone, please view here

Retro Headlight Ears for Triumph Motorcycles

The British Customs Customs Headlight Ears enable you to swamp out the factory headlight ears for a billet aluminum option that adds to the classic style of your bike. British Customs offers two different types, depending on your model. These CNC cut billet aluminum ears enable riders to adjust the height of the headlight easily and feature cutouts for weight savings.

Features:

• Replaces stock headlight ears for a cleaner & minimal look upfront
• Manufactured from billet aluminum, finished in black anodizing all in the USA
• Stainless Steel mounting hardware included

Special Fitment Notes:

If installing on Triumph Air Cooled Bonneville Carb/EFI/Mag or Thruxton 900, you will also need the British Customs Ignition Relocation Kit available here.

Print Install Guide (PDF)

• How to Install Retro Headlight Ears for Air Cooled
• How to Install Retro Headlight Ears for Triumph Street Scrambler
• How to Install Retro Headlight Ears and Flat Gauge Mounting Bracket on Street Twin

We’ve tried this lighting upgrade out on dirt trails at night and can confirm — they work.

On top of the dramatically improved visibility, this Triumph motorcycle headlight is adaptive. On-board sensors detect your cornering angle in real-time so that light can illuminate your vision field with the lean of your motorcycle, moving with you. This proprietary technology enables the light to fill in the gaps that the factory headlight would otherwise leave in the dark. The Motodemic Adaptive LED Headlight really proved itself to us when we took it on night rides on CA-1 through Big Sur where it gets pitch black on tight and twisty roads, but we still were able to see what’s ahead.

The Motodemic Adaptive LED Headlight is manufactured in the USA by J.W. Speaker, a highly regarded producer of high performance vehicular lighting solutions. Being a higher ticket 3rd party product, we made sure that it met our expectations by equipping several of our bike builds with this headlight on numerous trips on dark trails and canyons. We weren’t disappointed by the performance of this Triumph motorcycle headlight, and also found that its unique look is a major bonus.

Specifications:

• Color Temperature: 5000K (daylight)

• Lens Type: Polycarbonate

• Power Draw: 24 watts on low, 36 watts on high

• Connection Type: H4

Features:

• On-board sensors that detect leaning angles when cornering

• Dual burn high & low beam optics for extra visibility and safety

• Plug & play installation that directly replaces the factory headlight

• DOT & ECE dual-compliant headlight

• 40,000 Hour LED Lifespan Rating

• Available in Black or Chrome

• 5 year warranty

• Made in the USA

Pro Taper Dirt Track Bar Kit

The installation of aftermarket handlebars on the 3rd gen "liquid cooled" Triumphs is not easy. Due to the method that the controls mount and the addition of features like "throttle by wire," installing an aftermarket bar that is not the same bend as the stock bar, can be very difficult. To address this problem, we have put together handlebar kits that come with everything you need to make the upgrade to a Pro Taper Bar possible.

Kit Includes:

• EVO Pro Taper Dirt Track Handlebar
• Four Bolt Clamps *Street Twin Model Only
• Lengthened Clutch Cable
• ABS Brake Line
• Brake Line Extender
• Copper Crush Washers

Print Install Guides (PDF)

How to install BC ABS BRAKE LINE on the Bonneville and Street Series

Oury Road Grips. Oury Grip is one of the leading manufacturers for high quality grips in the motorsports industry. Anti-vibration large pad design eliminates numbness and slipping for any hand size. Used by amateur and professional riders all over the world, the Oury Road Grips will provide the performance and comfort you can expect from the best. All Oury Grips are made in the USA. Available in Black.

Specifications:

• 5 inches long (127 mm)
• 4.5 inch circumference
• 7/8" I.D. left hand grip
• 1" I.D. throttle hand grip
• 1.26 inches O.D. (32 mm)
• 5 ounces (141.5 grams)

The F3 Sport Series Shorty Brake Lever (BRF320-SK-B) by ASV is designed for riders who value precision, durability, and performance. Featuring a sleek black finish with a red dial adjuster, this lever combines style with function. Crafted with meticulous attention to detail and in compliance with stringent industry standards, it delivers a perfect balance of craftsmanship and design.

This lever is built with forged aluminum, ensuring it’s both lightweight and durable. The unbreakable pivot design guarantees lasting reliability, making it a product you can trust on any ride. The adjustable reach offers 4 inches of customization, while the micro-indexing dial reach adjuster with 180 increments allows you to fine-tune the lever for maximum comfort and control.

Smooth, responsive operation is assured thanks to the precision-sealed bearings in the pivot, providing you with exceptional braking performance. And with a 3-year unconditional crash damage guarantee, you can ride confidently, knowing you’re fully covered.

Key Features and Benefits

• Unbreakable Pivot Design: Ensures lasting durability and reliability for all riding conditions.
  
• Adjustable Reach: Offers 4 inches of customization for personalized comfort and control.
  
• Micro-Indexing Dial Adjuster: 180 increments for precise fine-tuning of the lever reach.
  
• 3-Year Crash Damage Guarantee: Provides peace of mind with comprehensive coverage in case of accidents.

Upgrade your ride with the ASV F3 Sport Series Brake Lever and experience unmatched quality, reliability, and control. Order yours today for a superior riding experience!

The Bates Foot Peg Kit includes (1) set of rubber foot pegs made from the original Bates foot peg mold and the required peg adapters to make installing them as quick and easy as possible. Made to last with quality materials so you won’t have to worry about your parts looking faded two months down the road.

Features:

• Fast and easy installation: takes less than 15 minutes for a set reusing pin and circlip
• Replace the stock platform with ridges to a completely round platform, thicker in diameter for a better foot placement and response
• Proudly made in the USA with billet, anodized in black
• Made from the original Bates foot peg mold

Note: Bonneville T100/T120 Rider model (front) Bates Foot Peg Kit will include two offset brackets to match the offset found on the stock foot peg. It is not necessary to install this offset but we include them to match the stock specifications.

The offset bracket will also apply for the Bonneville Bobber for the right/brake hand side foot peg.

Our line of Performance Turn Out Exhaust Tips offers an additional option when shopping for an aftermarket Exhaust. These are all made in USA using only top quality materials. Designed to factory specifications for a bolt on installation and finished to match the bike. Dramatically lighter then factory mufflers (13 lbs lighter)

FEATURES

• Originators of the Performance Tip design for Liquid Cooled models, back from 2016 on one of the first Street Twins in the US
• Handcrafted in the USA: Cut, TIG Welded with high grade 100% 304 Stainless Steel
• No baffles; meant to work with the catalytic converter
• Replaces intermediate/mid-pipe; bolt-on design

For Turn Out Performance Tips, please view the link here

For Bonneville T100/T120 models, please view Slash Cut Performance Tips here

Note: Will not fit EURO5 models as the intermediate/mid-pipe is welded onto the catalytic converter, starting at some 2021 models & up. To check for this, look below at your catalytic converter where the intermediate/mid-pipe joins. If there is a clamp, Performance Tips are compatible. If it's welded, it is not compatible.

We do not recommending pairing our Performance Tips with an X-Pipe as these pipes are hollow without any baffling. This can cause the engine to run poorly and/or damage the engine.

INSTALLATION GUIDE

Both the Turn Out and Straight Pipe Performance Tips install the same way. Steps will vary by bike model. See the following installation guides below:

How to Install Straight Pipe Performance Tips on Triumph Thruxton 1200/R

How to Install Turn Out Performance Tips on Triumph Speed Twin

How to Install Turn Out Performance Tips on Triumph Bonneville Bobber + Speedmaster

The British Customs Competition Headers replaces your stock headers, mid-pipes, and catalytic converter with a trimmed down, one-piece exhaust system that cuts out weight from your bike. With less bulk and an integrated cross-over design developed through extensive dyno testing, our high flowing Competition Headers adds huge benefits to your engine’s performance and sound.

Fitment is made easy with a CNC machined stainless steel header flange to ensure a precision fit, integrated bungs to refit the factory O2 sensors, and included rear mounting points for support. We designed the Competition Headers to fit seamlessly with our slip-On Exhausts.FEATURES:

• Dyno-tested design for optimal performance
• Integrated crossover allowing aid of exhaust pulse from both cylinders. similar to how a 2-1 exhaust system works
• Tested & verified to fit pre/post EURO 5 header models
• Handcrafted in USA: Cut, mandrel bent, TIG welded & hand finished with high quality batch of 100% 304 stainless steel

Note: We cannot verify fitment for non-BC exhausts

The Upgraded Seat For the Triumph Bonneville and Street Twin

We designed the Slammer Seat back in 2013 when options for Triumph seats were really limited. At the time, the goal was to create a Triumph Bonneville seat that would give the bike a custom look without sacrificing comfort — to get away from the bulky look of stock seats and use something other than single density foam, which has been the most commonly used seat filler for motorcycles since the 1940s. Over time we’ve been able to replicate our tried and true Slammer design across a variety of Triumphs, offering a Triumph Street Twin Seat option too, along with older air-cooled models.

Watch our video below to see how our Slammer Seats are made here in the USA: https://www.youtube.com/watch?v=yKYTLbUeB0Q

Fitment Note: This seat is not designed to work with grab rails, luggage mounts, or any other accessory that may inhibit the installation of the seat on the subframe.

FEATURES

• Designed in 2013 and consistently retested
• Hybrid gel technology combines proprietary foam and a special gel core to reduce road vibrations and improve the distribution of weight
• Covered with premium Marine-grade vinyl, which looks like leather and is both durable and weather-resistant
• Easy install: plug and play design

Print Install Guide (PDF)

• How to Install Slammer Seat for Liquid Cooled
• How to Install Slammer Seat for Street Scrambler

Galfer Brake Kit for Triumph Motorcycles

When upgrading your brake rotors, it is recommended that you replace your brake pads as well. Installing a new rotor without installing new a brake pad will reduce the effectiveness of your braking components and cause both the rotor and pad to wear prematurely. To provide an easy solution and extend savings to our customers, British Customs has worked with Galfer USA to create a Triumph-specific rotor/pad combo that will drastically improve the braking performance of your Triumph. This is the rotor/pad combo that we run on our bikes and we recommend this set up for your Triumph build.

Rotor Description: Full floating to ensure optimum brake pad-to-rotor contact. Every high-quality, Galfer-patented Wave® rotor is made from a proprietary mix of virgin high carbon 420 stainless steel, laser cut (never stamped), double disc-parallel ground to assure perfect parallel flatness and heat treated to each specific application. KBA and TUV approved. Seamlessly replaces stock rotor. Full instructions provided along with any technical help needed! Precision made in our Galfer factory in Spain.

Features:

• Designed for both street and track use
• Keeps brake system cooler by allowing air to pass over every point of a brake pad surface
• Best friction surface of any stainless steel rotor
• Full Floating Wave® blades ensure optimum pad-to-rotor contact for maximum stopping force and feel
• Seamlessly replaces stock rotor
• Extremely predictable and consistent
• Provides outstanding performance even in the most aggressive conditions
• Drastically increases lever feel / modulation and brake torque
• Advanced Brake Pad ceramic composites ready to withstand higher temperatures than regular semi-metallic carbon brake pads
• HH friction Pad rated compounds deliver excellent feel and modulation