I am looking for possible disc rotors for the GRX 2x11 that comes with the GRX BR-RX810 brakes but can just find one recommendation which are the Shimano Ultegra SM-RT800 Center Lock Ice-Tech, that I find very ugly. Even on the Shimano page I cannot find anything else. Are there any other rotors that are compatible with the GRX BR-RX810 and GRX2x11?
2 Answers
If you want to stick with Shimano, the line-up charts for the GRX groups suggest an SM-RT64, SM-RT70 and RT-MT800 for use with RX400 and RX600 and RX810 groups respectively. None of those discs have the 'bladed' look of the SM-RT800 rotor.
In all honesty, you can use any disc you like, and from practically any manufacturer as long as the dia. (and fitment type) is the same.
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3There are some limitations, however. I had purchased some "pretty" Hope 2 piece rotors that had red anodized centers that cost me a pretty penny. They did not work even though they were the right size because they had rivets holding the outer rotor to the rotor center and the rivets stuck-out too far and hit the brake caliper. So just be careful when ordering a non Shimano part... make sure you can return whatever you buy if it doesn't fit! Oct 14, 2019 at 12:34
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Just to chime in, I have had a similar experience with higher end rotors with aluminum centers. Oct 14, 2019 at 17:03
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It's always that problem with any 'exotic' components that some are not compatible, mainly because they don't follow the exact specifications.– CarelSep 18, 2020 at 7:53