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Shimano XT RT81 Icetech Centerlock Rotor

Item #: BR247L00
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Shimano XT RT81 Icetech Centerlock Rotor

Shimano’s RT81 rotors embody their signature Ice-Technology. Ice- Tech produces 25% more braking power. The 3 layer rotor features an aluminum core between stainless steel. This was done to quickly and efficiently dissipate heat. With better head dissipation, there is more consistent braking power.

  • Centerlock Rotors
  • Ice- Technology
  •  Mud- Shedding Design
4.7 / 5.0
43 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
31
10
2
0
0
Great Expensive Rotors
Been using the Shimano RT64 SLX rotors with SLX brakes for this past summer and braking was fine. The Ice-Techs are true out of the box, great stopping power and better modulation. Highly recommend them if money is not an issue. They work with allmodern Shimano brakes, M615 Deore, M675 SLX, M785 XT, XTR, ZEE.People also installed them with Avid and Hayes brakes.

PROS: Lightweight, Great Stopping Power, Easy To Install, Sturdy Design
November 25, 2014
Location:
Toronto, ON
Stopping Power
Good rotors, good price. 180mm rotors just fit on my Turner bike and provide excellent stopping power for this Clydesdale rider! :)

PROS: Handles Elements Well, Sturdy Design, Easy To Install, Great Stopping Power
July 31, 2014
Location:
Redlands, CA
Shimano brakes = pure bliss
Theres not much to say about shimano brakes except they rule. To get the benefits of this rotor you need shimano brakes with ice tech pads. When paired these discs are powerful,fade free, and quiet as a mouse in all conditions in any scenario. Gave 4 star cuz i havent tried the RT99 rotors.

PROS: Easy To Install, Fade- Free, Handles Elements Well, Great Stopping Power

BEST USES: Dh, Aggressive Trail, Mountain Biking
October 22, 2014
Location:
Riverside, Ca
love it dont bend like the 6 bolt
it comes with matching black centerlock

PROS: Great Stopping Power, Sturdy Design, Lightweight, Easy To Install

BEST USES: Wet Conditions, Road Biking, Mountain Biking
November 25, 2015
Location:
canton ohio
RT81 rotor
Order showed up fairly fast but I'm in NorCal so not too far from Jenson.

PROS: Easy To Install
August 5, 2014
Location:
Mtn View, CA
Great discs!
Easy install, stops on a dime. Shimano got it right using the same tool to mount a cassette for mounting the disc.
February 27, 2017
Purchased
1 month ago
Location:
Baton Rouge, LA
Best value without compromising performance.
I liked these rotors so much I'm putting them on my second bike. Combined wit XT brakes these rotors have tons of power without sacrificing control. And they are also super quiet. Great buy from Jenson as well at just 24.95 each. Awesome deal!
December 14, 2016
Purchased
3 months ago
Location:
Moundsville, WV USA
Great rotor at a great price
Great rotors.

PROS: Lightweight, Easy To Install, Handles Elements Well, Great Stopping Power, Sturdy Design

BEST USES: Wet Conditions, Road Biking, Mountain Biking
November 26, 2016
Location:
Boston, MA
Awesome rotors
These puppies stay cool

PROS: Fade- Free
October 31, 2016
Location:
Missouri
It is a great product, elegantly finished.
The service was excellent. However, I had some difficulty in obtaining the information regarding the type of lockring for the front hub.

PROS: Lightweight, Great Stopping Power, Sturdy Design, Easy To Install
November 2, 2016
Location:
Denver

Q & A

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Browse 5 questions Browse 5 questions and 14 answers
Will these rotors work with a 15mm frnt. axle and 12x142 rear axle?
Sean on Apr 16, 2016
Do these come with the Lock Ring for a 15mm hub?
t on Aug 10, 2016
BEST ANSWER: I believe so. Take a look at this video. This is exactly what mine came w/.
https://www.youtube.com/watch?v=lc2FfIH6tEI
But as in the video, I had to use the lockring that came w/ my Bontrager
hubs. The one that came in the package didn't fit.
With this rotor fit the XTR M988 Trail MTB Disc Wheelset? The wheelset is 15mm from and normal skewer in the back. if so with they fit as is or will they need an different lockring?
Daniel F on Feb 13, 2017
Shimano XT RT81 Icetech Centerlock Rotor
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BEST ANSWER: Yes this rotor fits Shimano centerlock hubs. The lockring that comes with this rotor will fit the rear hub. The 15mm front hub will need the locking that uses the external bottom bracket tool to install; the Shimano HB-20 one. The type of lockring that uses the cassette tool to install will not fit over the axle.
Do the rotors come with a lock ring?
Dan on Jun 20, 2016
BEST ANSWER: Yeah, they should work with that set up. They are individually sold.
is this individual or for as a set?
MarkO on Apr 14, 2016
BEST ANSWER: Just one rotor.

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Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.