| Description | The Shimano Ultegra CS-R8101 12-speed Cassette - extensive compatibility and efficient shifting - The CS-R8101-12 is a 12-speed cassette from the Shimano road bike series. In contrast to the CS-R8100, it is compatible with both electronic and mechanical g |
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| Supplier SKU | ICSR810112134 |
| Speed | 12 Speed |
| Brand Name | SHIMANO |
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