I have the Cog Multi-Trainer V2 and want to mount it on a Van Rysel D100. I have already unscrewed the drive-side adapter, but when I try to mount the cog, it still gets stuck in the middle of the axle. It cannot be pushed far enough to engage with the drive, and I can only remove it again with great difficulty. What can I do? (Sorry, for double posting, made a mistake with the other posting)
Problem is solved: I just put some WD40 on the axle and forced the Cog a bit, it worked!