Of National cycle routes

Call me a daft (or whatever you like, I'm new to cycling so I have an excuse...for now), but for which types of bike are National cycle routes designed ? Here in Wales, the on road ones are fine as are forest roads (mostly), but others (e.g. route 8), frequently go off road along bouldery paths. Now as the owner of a road bike, I'm not sure my wheels would appreciate thundering over cobbles, or am I being over sensitive?
I only ask because some routes look quite interesting but I'm not sure I'm brave enough to go that way! Thoughts?
I only ask because some routes look quite interesting but I'm not sure I'm brave enough to go that way! Thoughts?
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I don't think you don't need a heavy tread, just good tyre depth.
I use 28mm tyres (rather than the 32mm fitted at the factory) to give me a (little) more speed on the road.
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Ride On 8)
I rode that route on a road bike with 25mm tyres, the gravel sections between Bynea and Llanalli are not so bad but the transitions onto all those little wooden bridges just past Bynea are nasty, esspecially when you time your bunny hops wrong and smash into the lip :oops:
NCN 42 out of Chepstow, doable on a triple but why not just use the nearby B roads with sensible gradients.
/rant