Dura-Ace SM-RT900 Rotor - Centerlock
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The Shimano Dura-Ace SM-RT900 Rotor prevents brake fade on extended descents where you'd normally experience a major decrease in stopping power on the road. This Freeza Rotor is part of Shimano's newest Dura-Ace hydraulic disc brakes, meaning they're compatible with the Dura-Ace BR-R9170 caliper and Ice-Tech pads. They're compatible with frames that accommodate flat-mount disc brakes and attach to Shimano's proprietary Centerlock hub system.
The 3-layer rotor construction has a stainless steel braking surface with an alloy core featuring finned cut-outs for effective heat dispersion. Shimano claims heat is reduced by up to 50-degrees Celsius, which is significant when you're riding along mountainous terrain where sustained descents pose a threat to your stopping power.
Details
- FREEZA rotor reduces heat by up to 50-degrees Celsius
- 3-layer construction dissipates heat on long descents
- Stainless steel braking surface with aluminum core
- Shimano Centerlock attachment with included lock ring
- Compatible with Dura-Ace BR-R9170 disc brake caliper
- Recommended for use with Shimano Ice-Tech brake pads
- Item #SHI00E1
- Material
- [core] aluminum, [braking surface] stainless steel
- Attachment Type
- Centerlock
- Compatibility
- Shimano Dura-Ace BR-R9170 calipers, Ice-Tech brake pads
- Diameter
- 140mm, 160mm
- Claimed Weight
- [140mm] 3.5oz (99g), [160mm] 4.13oz (117g)
- Manufacturer Warranty
- 3 years
Reviews
Q&A
Overall Rating
1 based on 1 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageMay 24, 2020
Constant Warping
- Familiarity:
- I've put it through the wringer
These have been the bane of my existence for the last year. I had them on 3 bikes and 6 wheelsets. They look great (bling factor), are extremely light, dissipate heat well and stop perfectly. But they warp. Bad. All the time. If you live somewhere flat maybe these will work for you but if you have to brake on a steep descent just plan on brake rub during the rest of your ride. It is really that bad. On all of my wheels. It made riding unenjoyable for me...my cars require less maintenance than these brakes. I replaced with the MT800, problem solved.
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April 10, 2020