Hi all i am really struggling with the whole gear change lever on the right, let alone the shift pattern and this back heel affair. So can anyway advise of the gear change shaft diameter please ? i am thinking 12mm on the splined area Ideally i am looking for a Scrambler gear change lever, but if i cant find one i would put something else similar on allowing me to shift gears with my toe alone and angle a little more naturally in sidi bike boots and not the finest leather loafers. Bike in question is a 69 350 desmo Cheers in advance