I made them up myself out of abit of H30 aluminium. I have a lathe, mill, etc at home so i make most of my own stuff. Andy (from nsr world) gave me the drawings for the HRC F3 set up (for the MC18) so i just made up a set.

I had a look at a freinds MC21 today tho and it looks like they wouldnt work with the longer shock so its only any good on the MC18.