be carefull buying partworn wets
make sure you get to look at them even if they have lots of tread left make sure the leading edges of the blocks are not round of they really need to be good clean edges to work properly
i suppose you have tryed mr france i now he keeps new bridgestones in the 150
i spoke to him about the 160 on the 29 he reckons in causes clearance issues

might be worth a look here www.motoforum.net
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Half the strokes, twice the fun