Originally Posted by geode
So if someone found a good trials bike frame, sans wheels, ... could that person pop down to wally world and snag a sixty dollar 20" BMX bike and put those wheels on the trials bike instead of spending huge dollars for trials bike wheels from a trials bike dealer?
Not all 20" BMX wheels are meant to handle the abuse of trials riding, especially BMX wheels from WallyWorld. Thin axles, loosely tensioned spokes, steel rims.. add together to be heavy and weak wheels.
High end trials wheels have cutouts between spokes, drilled sidewall on the rim to save weight without reducing the strength of the rim significantly: