Looking for a dependable thumb brake for your motorcycle? The Racetorx thumb brake is your answer! This kit has been utilized in some of the most prestigious racing competitions around the world, including the British Superbike (BSB) series, Nolimits Endurance, Ducati Tri-Options Series, World Endurance, Isle of Man TT, and Northwest 200, so it's a top-quality product you can trust. With this kit, you can have peace of mind knowing that you have all the necessary components in one place, eliminating the need to order them separately. Don't wait any longer! Get your Racetorx thumb brake kit now and elevate your riding experience to the next level with the confidence that comes with dependable braking power!

 Bike Fitment-

The Racetorx thumb brake is a versatile solution for all kinds of motorcycles, including road bikes, race bikes, adventure bikes, and motocross bikes. Our thumb brake is fully adjustable, providing a wide range of adjustment possibilities. However, it is important to note that depending on the bike's fairings, tanks or frames, there may be some slight obstructions. If your motorcycle has handlebars, fitting clearance is much easier than on those with OEM clip-ons. Owners of Ducati motorcycles should note that fitting the thumb brake to the Ducati V4 Panigale & Aprilia V4 can be tricky due to clearance issues. This applies to any thumb brake, and limiting steering on the yokes is necessary. The Ducati V2 Panigale provides more clearance, but the frame is still obstructed at full lock. Lastly, we are excited to announce that the latest BSB Thumb Paddles are now available. This is the result of our collaboration with the team's Moto Rapido & FS3.

This kit supplied will mount in conjunction to your rear foot pedal. The junction valve in the kit will replace the reservoir on your foot master cylinder. 

Our kits have been fitted to all variations of motorcycles now and is a universal kit to ALL motorcycles. For any questions of junction valve fitments please send us an email to sales@racetorx.co.uk with an image of your rear foot master cylinder so we can clarify the SKU you require.

List of fitment, (Please still check the image matches the master on your bike)-

• RTX450JV - Commonly used on (Aprilia V4/RSV4 & RS660, KTM motocross bikes and more) (BREMBO)
• RTX452JV - Commonly used on (Honda CBR models and more)
• RTX477JV - Commonly used on (Kawasaki ZX10, triumph models, some Yamaha R6 and R1 models and more) (Main brand being the NISSIN master)
• RTX479JV - Commonly used on (Aprilia RSV/Tuono, All Ducati's, Most KTM road bikes, KTM SMCR and more) (Main brand being the BREMBO master)
• RTX506JV - Commonly used on (All Yamaha WR & YZ models but contact us first on this product)
• RTX595jv - Commonly known for the 2023+ models of CRF motocross bikes
• RTX613jv - for the new Braketech master cylinders very similar looking to the RTX450 type master.

Please contact us for any fitment questions.

MASTER CYLINDER-

• 11mm Brembo master cylinder most used on single-cylinder motorcycles under 450cc
• 13mm Brembo master cylinder for 2, 3 & 4 cylinder 500cc + motorcycles (Road, track, superbike and adventure)

Silver thumb brakes only offer large up paddles & BSB paddles, not other variants.

KIT INCLUDES-

• Thumb brake with Brembo master cylinder
• x2 Banjo bolts
• Junction Valve
• Racetorx Braided line
• Reservoir tube kit

FITTING SERVICE

We offer a fitting service at our workshop.

Location - Peterborough UK PE4

3-5 days for fitting the thumb brake kit.

The fitting service for a thumb brake is £75.