JT. Steel Self-Cleaning 825 - 520 Gearbox output pinionRef : JTC01140A / 1077483001

Manufacturer Ref: JTF825.13

The JT Sprockets JTF825.13 sprocket is a transmission part designed for off-road use. Machined from high-strength SMC420 steel using CNC technology, it combines durability and controlled wear for motocross applications where mud and debris constantly challenge the chain. Its "Anti-Mud" finish facilitates the removal of dirt between the teeth to minimize snagging and maintain rotation speed on muddy terrains.

• Material: steel (SMC420 alloy)
• Number of teeth: 13
• Chain pitch: 520
• Type/format: 825 (sprocket version)
• Finish: Anti-Mud, CNC machining

Designed to be lightweight without sacrificing mechanical integrity, this sprocket fits 520 transmissions intended for motocross machines. It is suitable for riders looking for a reliable replacement part to maintain the original gearing or slightly modify the acceleration of their motorcycle. Compatible with many motocross models, it can be found on machines such as the TM RACING EN 300 4T FI ES CORSE (2025), HUSQVARNA TE 310 I.E (2014), and TM RACING EN 300 4T FI ES (2025).