I'll be riding the South Downs Way over Christmas, not Mega-Avalanche.
How about this - put the 2.55 HD back on the front, and put the 2.25 NN on the back to give a little more grip than the 2.25 RR that was on there?
Could put the 2.25 Mary on the front with the 2.25 NN on the back. If you still have it. When it's really muddy there's a lot to be said for a narrower tyre.
@Dammit started
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I'll be riding the South Downs Way over Christmas, not Mega-Avalanche.
How about this - put the 2.55 HD back on the front, and put the 2.25 NN on the back to give a little more grip than the 2.25 RR that was on there?