SRAM Rival AXS derailleurs get the Kogel Kolossos OS ceramic pulley upgrade
With Zach giving the SRAM Rival eTap AXS group an honorable mention in his Editor’s Choice roundup, and my prior experience with Kogel’s Kolossos pulley cage upgrade, this new part makes the mid-level derailleur make more sense than ever. Considering a Rival AXS rear derailleur and Kogel’s new Kolossos cage for it still comes in
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