I am on the hunt for 120 or 140mm disk rotors, found plenty on ebay and amazon but I am afraid they are of less quality metals.
I dont want to spend much.
Next question is would normal disk brake calipers work on 120 or 140mm disk rotors? I have the usual Avid base and Avid mid level bb7.
I dont require an adapter, its a custom job getting rid of a brake drum, and the 160 disk rotors are to big, 140 and 120mm disk rotors would fit nicely.
Shimano makes 140mm rotors. They actually work quite well. I have used them on the rear of XC hardtails. Now I use them on my road bike, event on crazy fast descents in the Alps with serious hairpins I am not having any brake fade.
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