If your 2012/13 (Formula) unit has failed you will need to swap to the 2011 rear master cylinder. Not suitable For GasGas 2012/2019 models. Sherco 125/200/250/290/300 2004 - 2022. Beta Evo 125/200/250/290/300 2009 - 2016.
AJP/Braktec 2 Pot Rear Caliper Repair Kit GasGas Sherco Montesa TRS Vertigo Beta
BETA REAR TAIL BRAKE LIGHT RR X TRAINER 125 200 250 300 350 450
Braktec/AJP 4 Pot 25mm Caliper Repair Kit - GasGas/Sherco/Montesa/Scorpa/Beta
GENUINE ORIGINAL MIDWEST Levers Brembo Magura Braktec GasGas KTM HSQ Beta
Beta Evo 250 caliper piston fluid seals 25mm x 4 - fits many AJP calipers
Motorcycle Disc Brake Pads Compatible with FA115 AJP Caliper for Front and Rear Brakes