Shimano Speed Kolossos Oversized Derailleur Cage - 11 and 12 Speed 105 Color:Black which will make them more

which will make them more resistant to wear in muddy conditions

and GX versions

we did not want to restrict the range of use for these cages

speed‑focused silhouette

Shimano Speed Kolossos Oversized Derailleur Cage - 11 and 12 Speed 105 Color:Black which will make them moreKogel Speed Kolossos for Shimano 11 and 12 Speed 105 Speed isnt just for the prosits for anyone chasing the absolute best in drivetrain efficiency. The Kogel Speed Kolossos for Shimano 11 and 12 Speed 105 brings next level aerodynamics and performance to your ride, ensuring smoother shifting and maximum power transfer. Crafted with oversized ceramic pulleys and an aerodynamically optimized cage, this Shimano 105 specific derailleur system is