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+1 on the pipe thing. I've had a hard time keeping mine from leaking from the exhaust port. First love tap on a rock and the whole pipe seems to rotate around the frame and not seat in the port right. Only solution I've found so far is liberal use of sealant.
The pipe on this x-trainer looks harder to mame to my eye.
Compare to my two hunny.
KTM Freeride is the king of this though.