Cheers - will probably be sticking to all-weather trails initially, so hopefully can get away with just swapping the tyres...
Are you converting something you are used to ride on the road? If so, you'd probably better gear down a tad as you're accustomed to that gearing/riding. Especially given larger tyres increase GI a bit. Sorry for scobling.
@somuril started
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Cheers - will probably be sticking to all-weather trails initially, so hopefully can get away with just swapping the tyres...