SRAM Eagle users rejoice! Now you can enjoy the supreme shifting and performance of a Kolossos oversized rear derailleur with your SRAM XX1 Eagle AXS rear derailleur.  Our SRAM Eagle Kolossos works with all mechanical and AXS versions of XX1 Eagle, X01 Eagle and GX Eagle too.

Kolossos is the Greek word for a statue, much larger than the original subject. Sounds appropriate for replacing your 12 and 14-tooth stock pulleys with a 19-tooth bottom and a 14-tooth top pulley, built on our stiffest Kolossos cage yet.

Kolossos cages are built for reduced friction with shifting accuracy and chain retention in mind; something near and dear to all XC, marathon and enduro riders.

Ground clearance is not a concern as overall length is within 2mm of your stock cage. And, your Kolossos ships with our road seals for best efficiency, but can be swapped to cross seals for wet riding environments. 

Compatibility:  Fits SRAM mechanical and AXS versions of SRAM XX1 Eagle, X01 Eagle, and GX Eagle rear derailleurs.

The product does not fit non-Eagle (i.e. 11-speed) rear derailleurs.

** Please note Installing this oversized derailleur cage typically requires replacing your chain to accommodate the larger pulleys.   Full installation instructions can be found here

**Kolossos is a component upgrade for existing rear derailleur. Derailleur not included**