I had to file a semi-circular section out of the left-hand mount for my DX to clear the adjuster on my rear brake (Miche caliper brakes) and give it a bit of an S-bend kink to clear same. I've been meaning to make a stainless bracket to connect the rack to the seatstays as I was unimpressed with the two-strips-of-Meccano one-size-fits-all brackets supplied with it. And before anyone says anything yes, I understand they have to be universal fitting to fit a ranger of bikes but they could be better quality/better though-out than the supplied junk.