Gday Bahnzy,
The problem I have is I cant be sure the arm in this 465 is the correct one either, as the back of the bike is a bit of a bitza
Has had a different wheel and brake torque arm thrown in it. I put a square on the underside of the arm in line with the verticle centre line of the strut mount tag, and measured forward to the pivot verticle centreline and got a measurement of 215mm +/-. If anyone can confirm if that is the correct one, that would be a start.
My brother in law has a very original RM125Z that he is restoring, so I borrowed it's swingarm and compared to what I have. I would trust that bike to be more correct than mine. I measured it in the same fashion as above, and it has a dimension of 230mm +/-. I fitted it in my 465 frame and it fits perfectly. The length, width, fits around the cases etc . The rest of it looks to be identical, so the only difference is the struts mount 15mm further towards the rear axle. What difference that will make I don't know, and it would make 3/5ths of bugger all to me anyway, so I could use a 125Z arm if need be.
I checked with the cross reference programme lukeb1961 sent me, according to that the 250/465X and 250/465Z interchange. So I guess anything from '81-'83 would work. The more I look at mine, the more r00ted it is, so i'm sending it to scrap, the only thing it's good for. Hopefully a better one will show up
.
PS If anyone has the correct round aluminium brake torque arm, i'd be interested in that too
Thanks for the help
Adam