Originally Posted by
mvk1979
Hi guys wonder if you know if is possible to change my brakes to shimano m6100 with 180mm rotor on my Sirrus 4.0 2020.
Tks!!
Being that it is a post mount brake and you likely have flat mount not really without an adaptor and certainly no 180mm rotor. You can double check with Specialized but I don't think they accept 180mm rotors except on their MTB stuff.