Kogel KOLOSSOS derailleur arm with pulleys, R8100, R9200, road, gold
Kogel KOLOSSOS derailleur arm with pulleys
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.
3x stiffer than competing products and 2x stiffer compared to the original pulley cage on your derailleur
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Long tooth profile on the lower pulley for better chain holding
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Ceramic bearings in the rollers for even lower friction
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Reduction of friction, while maintaining shifting accuracy
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Choice of three color variants
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Groupset | Other |
Compatibility | Shimano Dura Ace R9200, Shimano Ultegra R8100, also for Di2 versions |
Pulleys | 12 - upper, 19 - lower |
Weight | 86 g |
product ID | 184835 |

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