None whatsoever. Mainly, a 25mm in the front will slow down the steering a tad. I run 23 front 25 rear on several of my bikes. It allows me to drop the pressure in the rear by 10 psi w/o risking a pinch flat.
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What, Me Worry? - Alfred E. Neuman
I'd like to think i have as much money as brains.
I see the light at the end of the tunnel, but the tunnel keeps getting longer - me