I got a shimano double front mech and am in the process of setting up my Dialled bikes Alpine. The frame was second hand and no shims but I thought I had got the correct front mech size.
Anyway the front mech is a few microns too wide. Is that why you get shims as the DB measurement are different to the shimano ones?
The other thing is that I am having great difficulty setting the front mech up as it will not shift to the big ring. The edge of the front mech is pushing up to the bash ring but the chain has not yet been forced up to the big ring??? I can't work out how it might work unless the bash ring was further away from the middle ring.
..you can def get a different SLX 3 ring one too.
