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| This is a must have upgrade for Shimano 10 Speed riders! |
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Features
- Premium F1 Ceramic Bearings using grade 3 Ceramic Balls
- English Threads 68mm
- Drastically reduced bearing resistance
- More durable than steel bearings
- Required upgrade for racers and fast club riders
- NOT COMPATIBLE WITH SRAM/TRUVATIV/BONTRAGER
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