Hi, I am also doing this conversion, I have a ST170 I use for circut racing in Australia, I have a Quaife dog gear set I am going to fit to the MTX75, Please keep me informed with what progress you have made, I will pass on any information I can help with. I am looking for a good quality alloy flywheel and race clutch, if you know of any brands that fit please let me know.
Cheers Paul