Description
- CNC-machined from a specially enhanced 7075-T6 aluminum alloy
- Silver available for all models; black, blue, red and orange anodized finish available for certain models
- #1 sprocket used in supercross, motocross and offroad throughout the world
- Ultralight design is 66% lighter than steel, yet incredibly durable
- Machined self-cleaning mud grooves at each tooth to help prevent mud buildup and increase wear resistance
121U-420-47GBBU made by Renthal
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