XTR RT-MT905 Disc Brake Rotor
XTR RT-MT905 Disc Brake Rotor

XTR RT-MT905 Disc Brake Rotor


Regular price Sale price$85.99
  • In stock, ready to ship
  • Inventory on the way
  • Free shipping on all orders $49+

New for 2022! The XTR MT905 disc brake rotors are the pinnacle in mountain bike braking. XTR RT-MT905 disc brake rotors deliver superb stopping power for the most aggressive riding. The Ice Technologies Freeza rotors dissipate heat to maintain braking performance on long downhill stretches.


  • Model No: RT-MT905
  • Series: XTR
  • Mount: 6-bolt
  • Sizes: 180 mm, 203 mm


  • Hub: 6-Bolt


Please reach out to us with any questions you may have on anything we sell. We want to make sure you get the right part the first time. Our lifelong riders at Thunder Mountain Bikes are knowledgeable and would love to talk to you!


We currently offer both economy and expedited shipping options though FedEX and USPS. 

Orders totaling over $49 are eligible to ship for free via an economy ground option of our choice. 

If you're in need of something super-quick, please contact us directly. We may be able to overnight your order with an additional fee and depending on your location. 


Should there be an issue with the item you bought, or you no longer need your purchase, we will be happy to set up a return.

All returns must be requested within sixty (60) days of the fulfillment date (i.e. the date we printed the shipping label and boxed up your order.) All returned items must be received in new and unused condition, with the original tags and labels attached, and in the original packaging.  We cannot accept returns on any items that have been installed or show wear of any kind. 

Return Process

To request a return, please visit: returns.thundermountainbikes.com and follow the steps to return eligible items from your order. 


After receiving your return and inspecting the condition of your item, we will process your return. Please allow at least seven (7) days from the receipt of your item to process your return or exchange. We will notify you by email when your return has been processed.

For all Special Order items, there is a 25% restocking fee. Special Order items are those that we do not currently stock.


For defective, damaged, or if we sent you the wrong products, please contact us using the phone number or email below.

Other questions?

If you have any questions concerning our return policy, please contact us at:

(928) 282-1106   |   webstore@thundermountainbikes.com

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Customer Reviews

Based on 3 reviews
Matthew McLean
Solid Performance From Shimano!

When the new XTR rotors were announced in a 6-bolt offering the money in my wallet was burning a hole in my pocket! Guess who was the only bike shop that had them?! TMB to the rescue. Always a pleasure working with these folks and the service is timely and prices are always outstanding.

When you're in Sedona crushing the "H's" stop by and see them! A really nice and cozy place to spend some time. Thanks!

Derek Bonevelle
Too notch

These things are the best rotors ever made.

Ricardo Francisco

XTR RT-MT905 Disc Brake Rotor