- Kogel's extra large Kolossos pulley system gets the aero treatment for top performance on Road, Triathlons and Time Trials
- Fully built in CNC machined aluminum with an internal spine for maximum stiffness
- Reduces wind resistance while also maintaining shift accuracy
- Built with Kogel's ceramoic bearings and road seals
- Available for Sram Red AXS and Shimano 11 and 12 speed Ultegra and Dura Ace Di2 Series
- DER PART KOGEL PULLEY KOLOSSOS AERO RED-AXS/RD 14/19T BK
Color: Black
