PS - I shall be riding Arthur the Cadenza so able to cope with aforementioned off-roading. Son of Oscar the Ribble is still on the workstand and Claud has ice tyres fitted which I don't think will be required. What I'm trying to say is that 23c tyres may not be a good idea if we go for my route suggestion. Having said that I have ridden the route on 23c as has Huggy I think.