



JT Sprockets steel sprocket, manufacturer reference JTF1425.15, designed for transmissions equipped with a chain pitch of 428. Designed for replacement or gearing change, this 1425 sprocket features 15 teeth and a steel color finish that easily integrates into urban, light off-road, and roadster powertrain assemblies.
Machined using CNC technology from high-strength steel (SMC420 alloy), it combines optimized design and robust construction for precise mounting on the engine shaft. Its tooth geometry is designed to ensure consistent contact with the 428 chain and facilitate clean guidance in all operating conditions.
Suitable for urban, cross, and roadster use, this sprocket is compatible with many 125 cc models — including the SUZUKI GSX-R 125 ABS (2025), GSX-S 125 ABS (2024), and GSX-S 125 ABS Special Edition (2018). Ideal for those looking to modify the gearing or replace a worn part with an original JT Sprockets piece, recognized for its expertise in transmission.