Will my rear gear changer fit over the axle on your conversion kits?
Some rear gear changers only have a hole in it for mounting. The rear axle on the Magic pie, Smart pie, and Pro901 wheels is oval and will slide into the dropout of any bike but the gear changer must slide onto the axle. If you have one with a hole in it will have to be replaced with one with the slot.
The 902 axle is round and should work with any gear changer.