Thats a serious dent mate!! Well this explains why the guy I bought this system off gave me 2 non standard spacers. I got the 15mm spec from Metalmule themselves but the spacers I got were 30mm or more at the back and probably 15-20mm at the front. I will dig them back out of my scrap jar when I get back home tonight. Also, with the back being further out than the front spacer it will twist the pipe away from the frame a bit more. Hopefully.