JT. Aluminium Ultra-Light 251 - 520 SprocketRef : JTC00512A / 1096568002

JT Sprockets Ultra-Light Aluminum Sprocket 251 - 520 (Manufacturer Part No: JTA251.49BLK)

Replace your sprocket with a piece designed for both the road and trails. This JT Sprockets sprocket adheres to the manufacturer's standards: made from aerospace-grade aluminum 7075-T6 (Ergal) to combine strength and low inertia, featuring a sleek black finish and a design focused on mechanical performance and transmission handling.

• Material: Aluminum 7075-T6 (Ergal)
• Color: Black
• Number of Teeth: 49 teeth
• Chain Pitch: 520
• Type: Standard (sprocket)
• Finish: Mud-resistant treatment on the teeth to limit the accumulation of mud and dirt

Compact and lightweight, it easily integrates into the transmission to adjust the gearing according to your use—whether for motocross or roadster. Suitable for models such as YAMAHA YZ 450 F (2026), FANTIC XX 125 (2022), or GAS GAS EC 300 F (2015). Installation with original fittings is recommended; check compatibility and chain tension adjustment before resuming your ride.