Hard Ano Works Triplestar Aluminum rear sprocket for 520 Conversion On Road applications. Hard anodized coating for extra strength & durability. Classic Sunstar 'works' finish, made from 7075-T6 aerospace grade aluminum for light weight with round shaped weight reduction cut outs. Used by championship level riders & teams for over 25 years & counting.
- Longest lasting aluminum rear sprocket on the market.
- Hard anodized coating for added durability and lasting appearance.
- Exclusive tooth-valley design offers better chain roller contact area, resulting in maximum power transfer.
- Weight reduction holes decrease reciprocating mass for superior performance.
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