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Dear Tim,I could not think of Reg Boltons name the other day when I wrote but came across his mod in 25 years on research the only caveat I have is this was not with a JE stem
Anyway we have fitted a JE stem and a coil over and gone from a single to a twin and thats enough variables for now cant change too much at once. Eddie that photo is not so good the front bottom pivot is actually slightly higher than the concentric center and dont forget the whole shebang has not hit a bump or a road yet yet since being built. If its not its a coil cut or a lighter spring
I agree with what you say ( it is counter intuitive) but my lower spring rate comment was in relation to Ed saying it looked lower at the frontTim, if it does turn out that the front is high compared with the rear then it is a heavier (stiffer) spring that is required, not a lighter one.