I just installed my new XTR m-975 front brakeset on my bike. However, the front rotor is not XTR, but the old one that I used with my Magura Marta set (Marta Wavy). XTR caliper pads are brand new, but brake performance sucks, it has never fully stop the wheel.
I have no idea if it is due to incompatiblity between marta rotor and xtr calipers (or pads). Should I really change my rotors?
If yes, which rotor should I buy? (my hubs are not centerlock compatible).
Thanks so much!
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