-
2-3mm is not going to be a machining QC issue, that's several tens of times more than an acceptable machining tolerance
Yeah, absolutely. 2-3mm is waaay out of spec.
Sometimes the post mounts on a frame can need faced but it would only be a fraction of material removed. No where near 3mm.The post mount standard should be exactly that - a standard! There shouldn't really be much of a deviation from it.
Indeed some frames and calipers can sometimes need a bit of shimming.
But I don't understand what the problem was here?
Either the caliper its self is incorrectly machined at the mounts or the post mounts on the frame are out of spec.
Magura say it can't be the caliper.
If the new set fits fine then it's unlikely the frame mounts are out of spec!
You are reading a single comment by @TotalShanner and its replies.
Click here to read the full conversation.
TotalShanner
I think its a frame and caliper combination thing. Not every frame is going to be exactly the same. Different specifications exist on where brakes should be placed although they should all be very similar. The hope caliper on my road bike fouled on the rotor and needed slightly spacing. Others use the same calipers on other bikes with no spacers. 2-3mm is not going to be a machining QC issue, that's several tens of times more than an acceptable machining tolerance