>>52608562They'd look weird and fucked up I think, Miraidon gets away with it since he's a robot and the wheels are made of weird light energy, but Koraidon is flesh and blood and shit.
Frankly modeling them both after bikes was a short sighted mistake, Cyclizar also looks really stupid running with its big inflated tires, they committed too hard to the bike idea when only one of them actually makes it work.