I'm way behind on posting my progress on the main thread of my build, but back to the subframe issue: my alleged R2J subframe arrived from Japan and is in great nick. I bolted it on and I've been rebuilding the right hand foot peg/brake pedal assembly and got it all together and all was going good until I tried to secure the master cylinder.

On my subframe there''s nowhere to do that- there is of course a mounting bracket on the subframe that came with the bike-(which we think is an 89-R5K subframe) but not on the this 'new' R2J one.

I'm beginning to wonder if the one I got from Japan is an R2J subframe. Anyone have any clues where it should mount? I'm sure my master cylinder is correct for an R2J bike because the parts diagram shows it being rectangular rather than round.

Original placement



Current quandry