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Shimano RT99 Freeza Centerlock Rotor

Item #: BR245L00
From USD$49.99 SAVE 38% USD$79.99 msrp
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Shimano RT99 Freeza Centerlock Rotor

The Shimano SM-RT99 XTR/SAINT Freeza Centerlock rotor is the pinnacle of Shimano's ICE Technology development. First featured in Pro Downhill mountain bike racing, the line has been expanded to include all sizes of rotors so other disciplines can too can enjoy the benefits of this top-of-the-line brake technology. The RT99 features Ice-Tech technology which is Shimano’s best-in-category heat management system. Brake heat from long descents sucks power from your brakes, but not with this rotor. The heavily shaped, lightweight Freeza rotor sheds heat incredibly fast for optimal performance, even in the most demanding conditions. A cooler rotor means more braking power, and more consistent braking performance, so you can forget about your brakes and focus on your riding.

The RT99 rotor with its additional cooling fins radiates significantly more heat than the already remarkable RT98. The benefit to you? when used in conjunction with other Ice-Tech technologies such as Shimano's finned disc brake pads and mineral oil brake systems, you can even go down one full rotor size to save weight without any decrease in cooling performance!

  • 20% increase in stopping power
  • 20% longer pad life
  • Additional 50 degrees Celsius decrease in operating temperatures over previous Ice Technology rotor
  • Package includes one rotor and a Centerlock rotor lockring
  • 203mm Weight = 173g, no lockring
  • 180mm Weight = 132g, no lockring
  • 160mm Weight = 116g, no lockring
  • 140mm Weight = 94g, no lockring
  • Lockring Weight = 9g
4.9 / 5.0
19 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
17
2
0
0
0
Best looking rotors
Light rotors that look great but are pricey. If you are installing with the avid bb7 disk brakes you need to bend back the metal spokes on top of the brake pads or it will not fit properly...the cooling fins will hit the metal... Bend back and problem solved.

PROS: Lightweight, Attractive Design, Easy To Install
November 5, 2013
Location:
New Jersey
Stopping power
Very light and very good stopping power. Have not had any heat fade. A tad bit more expensive, but a good buy.
March 28, 2017
Purchased
6 months ago
Location:
North Carolina.
Awesome Rotors
This is a great product. CenterLock is magic its so nice not to have to mess with the difficulty of 6 bolt system. Was delivered the next day. Thanks JensonUSA
June 13, 2017
Purchased
1 month ago
Location:
Davis Ca
Good for the rear and long descents.
100% good investment.
No fade, wow or glaze, stays crisp 1 finger braking.
Just buy it.
June 19, 2017
Purchased
6 months ago
Location:
Edmonton Canada.
Rotor Dream
It was here less than 24 hrs, I was surprised.
October 10, 2016
Location:
San Jose CA
Good as usual
Easier than going to the local shop

PROS: Durable, Lightweight, Easy To Install, Attractive Design

CONS: None

BEST USES: Mountain Biking, Racing
February 8, 2016
Location:
Thousand Oaks
The best
I purchase the rotors at 1:30 pm, I got it the next day at 10:30am. I was super impressed. (I do live in California)
August 10, 2016
Location:
Sylmar, Ca
Shocked at how much better this rotor is than the RT-81
It was in stock and showed up on time.
September 12, 2016
Location:
Utah
Great! Product!
This company was quick on delivering my purchase.
July 4, 2016
Location:
Bardstown, Kentucky
ICE Tech for the Win!!
Its like getting Christmas early when the UPS man shows up order always good to go! Thanks Jenson

PROS: Attractive Design, Durable, Easy To Install

CONS: None

BEST USES: Mountain Biking, Racing, Casual Riding, Upgrade
February 6, 2016
Location:
Buckner,ky

Q & A

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Browse 4 questions Browse 4 questions and 13 answers
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
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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.
Is included lockring designed for QR or 15 /20 thru-axle?
A shopper on Jan 13, 2017
BEST ANSWER: This came with the standard QR lockring that will fit over a 15mm axle but cannot be engaged by the standard cassette tool. You will need a different lockring for a 15/20 thru-axle.
Will these work on Dt-Swiss 1501 spline one wheelset? or do I need 6 bolts?
ignacio on Aug 24, 2016
BEST ANSWER: I went to the DT Swiss site and just picked any 1501 wheel. Then clicked on specifications and the hub showed "centerlock" brake mount.
So, yes this centerlock style rotor will work with the wheel I looked up.
I suggest you look up your wheel to double check.
Would these fit shimano m8000 calipers?
martin j on May 18, 2017
BEST ANSWER: Yes, Shimano brake rotors are compatible with any Shimano disc brake.

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Get free shipping with your $50 purchase today when you choose Standard Shipping at 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

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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.