As I said earlier, the narrowest front rim you can get sporty road tyre for is 3.00" which would allow fitting of a 120/70 (just). Ideally you'd want to fit a 4.00 or 4.25" rim at the back to allow fitment of 150/70 and 160/60 tyres (normal for a Supermoto and standard on the XTX). A 3.00" rear isn't really wide enough I'm afraid for a decent choice of tyres, with a 140/80 being realistically the widest option.

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