Features:
- RollerBoys equipped with low friction ceramic bearings for ultra-smooth glide and exceptional durability.
- Lubricated with special ceramic light oil for extra smoothness.
- Composite material provided by EMS Swiss, with 40% glass-fiber.
- Complete set of bushings for different shifting systems included.
- Ceramic bearings.
- 11T. Compatible with Shimano 9 and 10-speed / Mega Range and Campagnolo 11 speed.
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