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| Teeth | Stock | Date | 
|---|---|---|
| 13 | In stock, ready to ship | 2025-11-04 | 
| 14 | In stock, ready to ship | 2025-11-04 | 
JT SPROCKETS (SC) 520 Front Sprocket YAMAHA YZ 250 / YZ 450F (1999–2025)
The JT SPROCKETS 520 front sprocket with Self-Cleaning (SC) technology for Yamaha YZ 250 and YZ 450F (1999–2025) is made from hardened C45 steel, featuring a lightweight profile and a self-cleaning design that prevents mud buildup. Designed for motocross and enduro, it ensures high performance and extended durability.
Technical Features:
- Hardened C45 steel with heat treatment for wear resistance
 - Self-Cleaning (SC) design for optimal performance in muddy terrain
 - Lightweight profile to reduce rotational mass
 - CNC machined for precise fit
 - Compatible with 520 chain
 - Fitment: Yamaha YZ 250 / YZ 450F (1999–2025)
 
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