17mm internal would be fine for large tyres, I would go for the Grizzly that have an 18.8mm internal.
Stick with your 56cm an run a short stem, you'll get used to the handling after a couple weeks, or go for very short reach handlebar says 70mm.
@edscoble started
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17mm internal would be fine for large tyres, I would go for the Grizzly that have an 18.8mm internal.
Stick with your 56cm an run a short stem, you'll get used to the handling after a couple weeks, or go for very short reach handlebar says 70mm.