yes mate 42a, I have used this combination of tyres on mud, gravel, wet grass, pretty much everything and it grips really well, and because they are not very expensive, when it does wear down they can be replaced easily, I really do love my rear tyre, never had a pinch flat. just make sure you get the dual ply as I have tried the single ply on the rear and it just folds under pressure. oh and i would recommend the 2.35 instead of the 2.50