Bontee
Member
sander ,that’s nonsense,I have been mixing and matching transmissions since the late 80s,(yes I am that oldIve Read that it doesn't match that well. Its more noisy

At the moment Steel burgtec chainring,XO1 chain and slx 12speed cassette now just over 1700 miles and quiet and smooth ,still under 0.5 on the chain guage.