Soon after I got the SA it was clear that something was not entirely right at the rear end. Not that it was behaving weirdly, but there was something bothering me about the position of the wheel towards the frame.
Some measuring lead me to conclude that the wheel's offset wasn't right.
The measurements I made showed that the wheel should be moved 5 mm to the right to have it centred between both legs of the swingarm.
As I recently had to pull on a new tire, I decided to loosen the spokes and re-tightened them with a 5 mm offset.
Happy as I was with the job done I mounted the wheel, but because the saddle and mudguard where off, I immediately noticed the wheel was still not centred to the frame...
Now to the point; I did some investigative measurements and found that the swingarm sits about 4 to 5 mm left of the frame's centre. Is this normal...? I wouldn't think so, but then I can be wrong...
I have measured the distance between the frame plates, which is 236 mm (corresponding to 9.291") .The book says this should be 238 mm (9.373)
I also notice a small gap, maybe 0.5 to 1 mm max. between the right plate and the swingarm tube.
But all of this added up still don't explain the 4 - 5 mm difference.
Is it possible that some PO cut off a part from the tube to make it fit between the frame plates, or could this swingarm be from another model? If so, then the inner shaft has to be modified also, as there is no surplus thread sticking out at the nut
Or can this just be wear???
Thanks in advance for your comments...
BTW, this also explains why I had to add spacers between the swingarm mounting points and chainguard to stop the chain from rubbing against the guard! (the bike came without a chainguard)