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| Variant | SKU | Barcode |
|---|---|---|
| Shimano CS-S500 20T Sprocket | ICSS50020 | 4524667134374 |
Marrickville Bin: MD4-03-10
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For use on Shimano's internal gear Alfine hubs, the S500 cogs feature a special profile for enhanced chain retention.
FEATURES
- Special single gear design with chain tensioner
- Revised tooth profile to prevent chain skip