Kogel KOLOSSOS derailleur arm with pulleys / EPS12 / ROAD, black
Oversized derailleur pulleys are all the rage these days. Large derailleur pulleys cause less chain deflection and slower bearing rotation. Both lead to less friction and more efficient power transmission.
Main advantages:
- Reduction of friction, while maintaining shifting accuracy.
- Kolossos is 3x stiffer than competing products and 2x stiffer compared to the original pulley cage on your derailleur.
- Long tooth profile on the lower pulley for better chain holding.
- Ceramic bearings in the rollers for even lower friction.
- Choice of three color variants.
- The guide is designed for Campagnolo EPS 12s road derailleurs.
- Not compatible with 11-speed or manual kits.
- Number of teeth on the pulleys: 12 (upper) and 19 (lower).
Type: Road
Groupset | Other |
product ID | 185151 |

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