
JT SPROCKETS Standard Steel Sprocket 1847 - 428 (Manufacturer Ref: JTR1847.57)
57-tooth rear sprocket from JT Sprockets, designed to equip the final drive of roadsters fitted with a 428 pitch chain. Made from C49 carbon steel, it features a sleek black finish and a standard profile suitable for original replacement or gearing changes to modify engine behavior and torque response.
Ideal for maintenance operations or for adjusting gearing (more torque at low RPMs by increasing the number of teeth), this sprocket is aimed at riders looking for a simple and robust replacement part for the final drive. Before ordering, check the chain pitch, centering diameter, and drilling to ensure compatibility with your model.
Common compatibilities: YAMAHA TDR 125 (2001, 2002), YAMAHA FZR 400 RR (1992) — check specific mounts according to year and version.