Road Disc Brakes- Rotor Choice
Moderator: robbosmans
Bumping this to see if anyone has experimented with other sub 100g options? Carbon Ti makes some pricey ones with a carbon carrier. There's some ashima floating rotors, kcnc razor, hope x2 etc... Any of these decent?
Someone above mentioned they wore quickly. How many miles is quickly?
Someone above mentioned they wore quickly. How many miles is quickly?
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A quick update to this topic.
Dura-ace rotor and Ultegra rotor do not have the same pulsing on TRP brake or some other wider pads. see where the external notch is aligned with the narrowest part of the rotor surface on Dura-ace? It make each quardrant have a spot where the contact surface is lower compare to other area.
Now on Ultegra, the notch is actually on the nearly widest part (inside) of the rotor. I'd assume it has more even surface area throughout the circle.
ps. both image are 160mm rotor, they are not to scale to each other, i just quickly grab the images and circle it.
Dura-ace rotor and Ultegra rotor do not have the same pulsing on TRP brake or some other wider pads. see where the external notch is aligned with the narrowest part of the rotor surface on Dura-ace? It make each quardrant have a spot where the contact surface is lower compare to other area.
Now on Ultegra, the notch is actually on the nearly widest part (inside) of the rotor. I'd assume it has more even surface area throughout the circle.
ps. both image are 160mm rotor, they are not to scale to each other, i just quickly grab the images and circle it.
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The Ultegra rotors still have the issue where the pads come in contact with the cooling fins AFAIK.
Currently it is not in contact on my set-up. Steel part are thicker than recessed aluminum fin. Rotor will past its replacement due if the steel wear down so much that it level with the aluminum fin.
However, the set-up are still quite new and the pad are still flat. If the pad wear unevenly (and thicker near the fin area). Pad digging into aluminum fin is possible.
However, the set-up are still quite new and the pad are still flat. If the pad wear unevenly (and thicker near the fin area). Pad digging into aluminum fin is possible.
Bump to see if anyone tried RT-MT900?
It is also ice tech freeza rotor, but with less pronounced fanblade shape than SM-RT900 and 800 (Dura-ace and Ultegra rotor).
Center Spider seems to be less thick. It looks even more aero and less cross-wind sensitive than Dura-ace and Ultegra rotors.
Not sure about braking area though. While it look quite wide and uniform. I have no idea how it would perform.
https://bike.shimano.com/en-EU/product/ ... MT900.html
It is also ice tech freeza rotor, but with less pronounced fanblade shape than SM-RT900 and 800 (Dura-ace and Ultegra rotor).
Center Spider seems to be less thick. It looks even more aero and less cross-wind sensitive than Dura-ace and Ultegra rotors.
Not sure about braking area though. While it look quite wide and uniform. I have no idea how it would perform.
https://bike.shimano.com/en-EU/product/ ... MT900.html
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That looks like a much more practical design than the road rotors. I’m extremely happy with Centerline X rotors so I’m not inclined to be the guinea pig for cross-compatibility testing.
I’ve been using these for about 1000 miles now, can’t say as I notice much of a difference over the standard DA rotors but I prefer the look of these. Set up was fine on both DA and Ultegra calipersHexsense wrote: ↑Mon Dec 31, 2018 3:08 amBump to see if anyone tried RT-MT900?
It is also ice tech freeza rotor, but with less pronounced fanblade shape than SM-RT900 and 800 (Dura-ace and Ultegra rotor).
Center Spider seems to be less thick. It looks even more aero and less cross-wind sensitive than Dura-ace and Ultegra rotors.
Not sure about braking area though. While it look quite wide and uniform. I have no idea how it would perform.
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I run Shimano RT99, as do many pro teams.
Sent from my iPad using Tapatalk
Sent from my iPad using Tapatalk
I've tried a bunch of different rotors, can't say there has been much difference between them. Biggest difference has been which wheels I run on the bike, interestingly the braking with my inexpensive Giant SLR1 wheels is much smoother, quieter, more linear and more powerful than when I run my Enve wheels
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Everything running great with my Centerline. I say just match it to your groupset.
Running 160/140 Centreline X's on my CX bike (use it on the road too with different wheels).
Really rate them, no issues at all.
160mm - 121g
140mm - 103g
Shimano RT-99 160mm - 115g
Really rate them, no issues at all.
160mm - 121g
140mm - 103g
Shimano RT-99 160mm - 115g
SL8 S-Works Project Black - 6.29kg
IG: RhinosWorkshop
IG: RhinosWorkshop
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I have two disc road bikes. One with 160/160 and one with 140/140 airotors. I think 76g for the 160s and 66g for the 140s.
I’ve lived in Geneva for the past two years and cycled 7000miles in 2017 and 9000 miles in 2018 on the same four rotors in the alps. No issue stopping my 77kg mass on mountain descents into multiple hairpin bends.
The bike with 160s also did the three descents of ventoux without giving up. Yes, they were hot but still stopped more than we’ll enough.
I’ve lived in Geneva for the past two years and cycled 7000miles in 2017 and 9000 miles in 2018 on the same four rotors in the alps. No issue stopping my 77kg mass on mountain descents into multiple hairpin bends.
The bike with 160s also did the three descents of ventoux without giving up. Yes, they were hot but still stopped more than we’ll enough.