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The Ohlins come to mind but the fitment of them seems to be a bit problematic, and for what they cost they should sure as heck fit perfectly
I can't comment on the spax but what fitment issues are there with the ohlins? Mine dropped right in and the eye even adjusts which makes up for the slop on the shock mount as one of my shocks was about 1/2" out from the other. Now you have to shim left to right with washers but that was not a big deal as the factory shocks were shimmed with washers as well. Another surprise is the factory shocks and the bolt are different diameters on mine which also made for more slop.
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The diameter of the springs are such that getting them in perfectly without hitting the fuel tank or the drive belt.
Did you have to machine the bushings to position the shocks properly?
What year did you purchase them?