Interestingly, Kogel says the 10-44 XPLR cassette and requisite 1x drivetrain setup the SRAM XPLR group demands isn’t just for gravel, that it works very well for triathlon and crit racing, too…albeit with a larger chainring up front.
So whether you’re racing around the city blocks, from T1 to T2, or as far away from pavement as you can get, their new Kolossos SRAM XPLR derailleur cage puts ceramic bearing-equipped oversize pulleys under the derailleur.
Kogel’s stiff, machined alloy cage maintains (they might argue improves) shift performance while delivering lower drag. The bearings get their low-friction road seals to minimize system drag, but you can add their heavier duty ‘cross seals if you know you’ll be slogging through bad weather or deep mud.
They say it’s the shortest pulley cage they’ve ever made, designed specifically for the XPLR rear derailleurs, no matter how you use them.
A narrow-wide lower pulley aids chain retention, and tooth counts are 15 (upper) and 18 (lower). It’s available in raw and black anodized colors, retail is $475 (pre-order pricing is $375). It fits both Red and Force XPLR eTap AXS derailleurs.