Jumping on a bike is also basically a two-foot jump, where you pull the whole bike up after yourself using the handlebars. There is no special "pull up the fron

Jumping on a bike is also basically a two-foot jump, where you pull the whole bike up after yourself using the handlebars. There is no special "pull up the front first and then push forward" as many people believe. The initial jerk is just to get the handle bars above the COG so that you can actually lift the bike from there and to put your pedals above the balance point of the rear wheel so you can push down hard for the actual jump. This might seem strange at first but when you think of it, apart from the legs what parts of the body have enough force to jump yourself that high, it's not like you can magically jump higher just because you are standing on some weird contraption. On a bike you do get some help from preloading the tyres to give you a bit of bounce but that's minor compared to the rest of the movement.