Yes the big deal on the vibration is a bit of a mystery.....basically the same as the srx, complete with counterbalence shaft, and in the same chassis as my track bike, which, for the record is very smooth. My feeling is, that the xt lump has been 'tuned' i.e. carillo rod and lighter piston etc, thus the vibes would actually be coming form the counterbalence shaft which is now over compensating.....good theory....probably a load of bo77ocks, come to think of it, my track bike has a carillo rod..........i'll get my coat
