The answer to my question is a zxr400 shock - although it is not a straight bolt on swap.
The honda shock has 10mm eyes whilst the zxr ones are 12mm - I bushed the zxr shock with 12mm od 10mm id steel tube (B&Q). You need a new nut and bolt for the bottom shock mount.
Also needed to use all of the pre-load on the zxr shock (but I am heavy!).
One the road much improved - does not bottom out and less 'boingly'!
Lowers the bike - I would guess 20 -30 mm but the standard side stand is usable - just!
I am happy with it
Frog
