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Kogel KOLOSSOS derailleur arm, Shimano 105 R7000/R7100, black

379 €
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Bigger is faster.

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.
Technical specification
  • The leash is intended for road derailleurs Shimano 105 R7000 and R7100.
  • It doesn't matter if it's mechanical or Di2, medium length (GS) or short arm.
  • Number of tubes on rollers: 12 (upper) and 19 (lower).
Category: Derailleur straps
Type: Road
Product details
Groupset Shimano 105
product ID 331695
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Accessories for bicycle derailleurs from Kogel
The Texas brand Kogel will be loved by everyone who is focused even to the last details. It offers ceramic bottom brackets, oversize pulleys or full arms and also ceramic wheel bearings. They make bolts from titanium for mounting discs, baskets or stems, all tested by the pro Trek teams they sponsor.
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