aside from mounting setup, what about gearing (same between the two?) and or tire tread "bite". Good traction breaks a lot of things ... re. tom's comment, i just chopped a main down tube section out of the polaris trailboss frame to use for the rear crossmember on the yerf swingarm and nixed that idea after seeing that it was such a thin wall tube. Frame top tube was crushed from the junkyard claw, so no great loss--surprised me how light it was.
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