JT. Steel Standard 1256 - 420 Output sprocketRef : JTC00291A / 1077213003

The JT SPROCKETS standard steel sprocket 1256 - 420 (manufacturer part number JTF1256.15) is designed to replace your original sprocket or modify the gearing on small off-road motorcycles. Machined from high-strength SMC420 steel using CNC technology, it combines durability and precise alignment for the entire transmission-chain system.

• Material: SMC420 Steel
• Number of teeth: 15 teeth
• Chain pitch: 420
• Type: 1256 — Standard version
• CNC machining for controlled geometry and consistent wear
• Lightweight and optimized design for easy installation and a good balance of strength and weight

Ideal for motocross and small off-road bikes, this sprocket fits on compatible 420 transmissions. It is suitable for riders looking for a reliable part for maintenance or to adjust the gearing according to their terrain and riding style.

Main compatibilities (examples):

• HONDA CRF 50 F (AE04) – 2026 – 50 cc
• HONDA CRF 70 F (DE02) – 2012 – 70 cc
• HONDA CRF 50 F (AE03) – 2012 – 50 cc