Just transferred some koxx brown material to some TNN CNC backings that i have, had to glue the material in with some epoxy and shoved them in the oven to go off. I didn't try them before, but they wont clip over the nipple on the pistons. any ideas? Secondly i bought some trialtech single speed spacers a month or so ago and finally got round to trying them, removed all the burrs on the freehub body, used a rubber mallet to try tapping the first one on, but they just wont go on. Tried them on a different rear King, Pro2, and a few other hubs i have in the garage and none of them fit, has this happened to anyone else?