Hi Doc...i'll have to measure the shaft diameter in the morning,yes the split section and bolt are welded and ground back.
I only noticed that it was a pinch type when i looked on the inside wondering why there was 2 splines missing.
Sort of looked on ebay but its only a guessing game on the swing side.
I wouldn't mind a pinch type as it should prolong the spline life better.
Thanks oldfart,i'll keep that in mind.
Did any of the 80's RM's have the pinch type or was it only the centre bolt type from "N" onwards?
cheers...mario
Measured the shaft this morning and it approx 19.20mm od