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Shimano XTR and XT Oversized Derailleur Cage - Custom

Kogel Bearings
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Customize your XTR and XT Kolossos colors the way you like.

Shimano mountain bike riders rejoice! Now you can get the perfect color scheme for your oversized derailleur cage AND enjoy the supreme shifting and performance of Kolossos with your Shimano 12-speed XTR and XT rear derailleur

Enjoy the super-smooth, accurate shifting with less friction and chain drag on your rear derailleur in a color scheme that matches your riding style!

About our Kolossos Oversized Derailleur Cage

Kolossos is the Greek word for a statue, much larger than the original subject. Sounds appropriate for replacing your 13-tooth stock pulleys with a 18-tooth narrow-wide 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, but doesn't hang lower. And, your Kolossos ships with our road seals for the best efficiency, but can always be swapped to cross seals for wet riding environments.


Our Shimano XTR & XT Kolossos only fits Shimano XTR and XT 12-speed rear derailleurs.

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


We know you can’t wait to get your hands on your new upgrades so we try to keep you waiting as little as possible. To do this we aim to keep as much of the “regulars” in stock, allowing us to ship your order to you and have you riding again as soon as possible.

Unfortunately, we are not always able to keep every item in the catalogue in stock. In such a case, if you are in need of a particular item which we do not have in stock, please contact us and we can order them specially for you. ***Please note that special orders may incur an additional delivery fee.***

The lead times on these special orders, custom products or items that are out of stock will be slightly longer. However, we will always endeavor to have these items landed in our warehouse and shipped off to you as soon as we can.

Kogel’s “Guaranteed Performance” Warranty

  • Kogel Bearings takes pride in delivering a best-in-industry warranty. Their 2-year warranty means you can feel confident and secure about your next two seasons of riding.
  • If a product fails in the first year, it will be replaced. The second year will require an annual bearing service.
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