If it is the route in which takings in the end the flag located in the right end the jump is impossible because there is no sufuciente space to reach speed and to reach it.
... i tried it a lot a while back, i never managed to get over, the closest i got was my front wheel to hook onto the pipe thing but then i would just spring back leftwords...
if there is a way of getting over, it is doing the spring thing but breaking in a way like eruption in sweet fifteen. I dont think its doable... but you never know.