JT. Steel Standard 1263 - 428 Gearbox output pinionRef : JTC00292A / 1077215003

The JT Sprockets sprocket reference JTF1263.14 is a sleek and reliable drive component, designed to replace the original or modify the gearing on small displacement motorcycles. CNC machined from SMC420 steel, it features a clean finish and optimized tooth geometry for precise engagement with a 428 pitch chain.

• Brand: JT SPROCKETS
• Reference: JTF1263.14
• Material: Steel (SMC420 alloy)
• Number of teeth: 14 teeth
• Chain pitch: 428
• Type / version: 1263 – standard version

Ideal for urban, cross, and roadster uses, this sprocket is intended for riders who want to maintain a robust and precise transmission. Its design allows for easy installation as a direct replacement for the original engine sprocket, providing a controlled torque feel or adjusting the gearing according to your riding style.

Common compatibilities: YAMAHA R125 (2025), RIEJU RS3 125 (2016), BETA RE 125 4T MOTARD (2012). Be sure to check the chain pitch and the number of teeth of your setup before ordering. Regular chain maintenance and axial play checks will prolong the lifespan of the entire transmission system.