GPZ1100 B1 vs. Z1 range frame dimensions

[Jay1969]

Hi everyone.
Are the centre stand lugs, the rear engine mountings,
and swing arm width the same widths apart on these 2 frames?

[chrisNI]

Hi Jay nice to see you’re back.

Without getting the tape measure out I’d guess the answer is no.

[8 Valve Mark]

what's the cunning plan jay? centre stand mounts are different both ways i reckon but I've seen plenty of gpz/j motors in Z frames. anything goes as they say!! ps swinging arms are very close, so should be feasible m

[neilbarrett]

gpz motor is shorter,you end up with a gap were the kick start used to be