Fiona N
Veteran
I sorted a pair of serious racing mud-plugging tyres last year with wide spaced, steep sided studs (can't remember the make offhand but can check later) but only (barely) 1.75 inch wide. They are just fantastic on everything but dry tarmac. In snow I can get up stuff that even (inexperienced) 4x4 drivers worry about - that compacted hard snow which gets so polished. They tackle slush with aplomb and ice smears, or indeed that compacted 'glacier ice' which results from thawing and refreezing, are no problem.
But the widespaced, asymmetric studs (i.e. there's no continuous or even semi-continuous ride strip in the centre of the tyre) on the front wheel means there's a constant left to right wobble of the steering on a hard smooth surface like tarmac which is very unnerving at first. It goes if you let the tyres down from max pressure (5 bar) which I assume means that there are more studs in contact with the road surface. So I do tend to set the tyre pressure according to where/in what conditions I'll be cycling - rather like mtbiking but on road
But the widespaced, asymmetric studs (i.e. there's no continuous or even semi-continuous ride strip in the centre of the tyre) on the front wheel means there's a constant left to right wobble of the steering on a hard smooth surface like tarmac which is very unnerving at first. It goes if you let the tyres down from max pressure (5 bar) which I assume means that there are more studs in contact with the road surface. So I do tend to set the tyre pressure according to where/in what conditions I'll be cycling - rather like mtbiking but on road