The Fast 10 speed pinion pack with optimized tooth profile. The result is perfect traction synchronization and quick shifting thanks to the Ultra-Drive design.
features:
- Use: road
- Weight: 258 g
- Ultra-Drive tooth design: allows a change always ready, fast and precise.
- Pinion synchronization: placement of pinions designed to make the change process faster and reduce stress on the chain
- Surface galvanic treatment with nickel-chromium: reduces pinion/chain friction and extends the life of pinions
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