Kogel Bearings Speed Kolossos Oversized Cage, Shim RX800 Black NLS

- Offers the lowest friction possible while maintaining shift accuracy
- Includes pulleys with ceramic balls, steel races and road seals
- Long tooth profile on lower pulley for best chain retention
- Same weight but even stiffer than the previous generation Kolossos for full gravel capability without compromising performance



Model: Speed Kolossos
Compatibility: RX800 and GRX
Upper/Lower: 12/20t
Color: Black