JT. Steel Standard 1264 - 428 Gearbox output pinionRef : JTC00295A / 1077216003

Manufacturer Ref: JTF1264.17

The JT Sprockets 1264 standard sprocket is a transmission part designed for urban and roadster mounts. Engineered for classic replacement or to modify the gearing, this sprocket is aimed at riders looking for a robust and precise part for their 428 chain.

• Material: steel (high-strength SMC420 alloy)
• Number of teeth: 17
• Chain pitch: 428
• Type / Version: 1264 – standard
• Finish: CNC machining for precise geometry and consistent wear
• Advantages: optimized design, low unsprung mass for a sharper torque feel

Suitable for original replacements on small displacements, this sprocket is particularly compatible with models such as the HONDA CB 125 R (2025), the VOGE 125 R (2024), and the RIEJU MARATHON 125 SM PRO (2020). Its CNC machining and the use of SMC420 alloy provide mechanical durability suitable for daily use in urban environments as well as the typical demands of roadsters.

Replace your original sprocket with reference JTF1264.17 to restore a crisp transmission and responsive chain behavior without compromising on material quality.