The Shimano RT-CL900 disc brake rotor provides quiet and consistent braking control for any terrain. Consistent braking performance on any long, steep descent thanks to excellent heat dissipation. Robust arm shape for quiet operation without sacrificing weight or heat dissipation. Heat dissipation paint boosts performance. 1.5mm thickness. Includes lock ring with internal serration.
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Shimano
Product ID: GM080122-27
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Overall rating: 5.0 / 5 from 3 reviews.
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"Shimano braking systems are pretty much the gold standard. These rotors always deliver consistent, reliable performance. They never make noise (unless they get really wet) and the braking modulation is confident and predictable."
"I've only been out on 3 rides on the new rotors. They seem to be doing the trick on the long steep down hills."
"These rotors replace the previous generation that had built-in fan blades to cool the braking surface, which still had occasional rub when they got hot under heavy braking. I’ve only ridden a few times with these new rotors and I have not noticed any rub after heavy braking yet."
