



Manufacturer part number: 440 12 18NC
PBR steel sprocket, standard version 440 designed for 520 transmission. Drawn from PBR's track and competition experience, this sprocket provides a reliable solution to replace a worn element on your drive chain, whether you ride in motocross or on a light roadster. Its high-quality steel construction meets the demands of off-road and road use.
Controlled treatment and machining reduce friction and provide good resistance to corrosion and abrasion — important factors when subjecting the transmission to muddy conditions or long riding sessions. Easy installation as a direct replacement for the original sprocket; check the spacing and compatibility with your rear sprocket and chain before installation.
Common compatibilities: GAS GAS EC 125 RACING (2015), YAMAHA YZ 125 (CE13) (2004), GAS GAS EC 125 SIX DAYS (2011) — suitable for 125 cc machines equipped with 520.