Hi! I have the problem of my derailleur cage touching the trainer if I shift to the lowest god. The solution should be to install the provided spacers behind the freehub body.To do this you have to remove the freehub body as well as the 'back ring', I also call it a sleeve or collar, not sure if it actually has a name or part number. This should be loose on the shaft and come off easily with one's fingers. On my (completely brand new, unused) Neo, this ring is totally locked in position. I have tried with a variety fo pliers and other torture implements to remove it but it does nut turn, does not budge. I have complained 3 times already to Garmin support but they have so far offered nothing. Does anyone have any advice, or at the very least commiseration, for me? Thanks!