The BETA START-UP GEAR (OEM 035.06.002.00.00) is the original Beta transmission component for the RR 125 2T, RR 125 2T RACING, RR 125 2T X-PRO (2018–2027). It transfers power through the gears smoothly and precisely. Replace when teeth, dogs or forks show wear. Genuine OEM means exact fit, correct materials and no guesswork — and it protec...