Not sure if this is the correct forum for this but here goes...
I'm off on a 120 mile round trip cycle along roads and riverside paths and some dirt tracks and so plan to fit suitable tyres on my racked-up cyclocross bike (which usually I use for road commuting). For tyres I'm thinking
Contintional Country Plus and for tubes
Continental Tour 28 all for my 700c wheels (Mavic Aksiums). Will I be okay with that tyre/tube combination? If so, should I go for the 37mm or 42mm tyre? Would there be much benefit from a wider tyre (assuming it'll work with my wheels)?
Excuse the newbie questions