The pics on the OSSA site are very nice, it had a perfect shot of the rear swingarm linkage, certainly a rising rate setup, but with literally no parts!! Just the fulcrum, no relay rods, no counter, no 17 different bearings, if they have the swingarm pivot set up right for the torsional load this setup has real promise for an easy to maintain low cost reliable system. I did note a concern on the left foot side, there is some serious wad up potential I beleive at the countersprocket, the shifter is way to close with no protection for a wad up to the case or shifter shaft near as I can see in the 2d image. I also see very little room for playing with the countershaft sprocket size. i am sure none of these are issues that arise in their extensive trials experience, but I'm pretty sure will rear its ugly head if enduro riders start sticking that setup in bogs.
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