So it seems the XF200 and the DRZ125 have identical geometry/design....I am trying to see if they are exactly the same dimensions...after studying the camshafts I see that the XF has a gear of some sort on the left hand side...the DRZ125 doesnt share this same feature...but both engines have provisions for this in the cam/valve cover....strange....I cant see that the gear has any function at all in the XF200...so I assume it is for some missing piece of equipment lost in design?....lol...the cams look identical otherwise...now I just need to get my hands on one to test it out!!....I'm wondering what the factory cam in the XF200 measures up to....and if it is wimpy as I suspect, the hot cams for the DRZ125 might give a bit of breath to the XF's 200cc setup!