just replaced my chain on my 2x10 xt. has not done my work but the chain checker now reads 75%. fitted a kmc x10 93 and found i now have what i think is slip, small gear on the front, small gear on the back. moving very slow and pushing hard of the pedals i get a large clonk and a notch felt via the pedals. it will only do it in this gear and i cant get it to slip if pushing on the pedals with the brakes locked on. the rear mech is set up ok and all i changed with the chain.
is the cassette worn or is it because i didnt fit a shimano chain? a new cassette is £55.
have a fallen for a trap? i always thought that when a chain reached 75% you replacee it so save the cassette from damage, making it last longer? i have done this and all i have now is £20 worse off and a chain that slips, i dont want to spend £75 frequently every time the chain is worn. would i be better off re fittig the old chain and just leaving it till it faults then replacing everything?