Hi Guys, Thanks for the input, & I'm sorry if my reasponse is slow, but my 'net access is quite limited. - On reflection, it seems that I should have qualified my request by saying for winter use? While it's a fair comment to say that push bikes don't go fast enough to aquaplane (& yes, my understanding of tyres comes from a motorbike point of view, without having a lot of info on the specifics of it, it would seem that problem starts from when the tyres can't displace water fast enough up until it actually lifts off the road. However, that doesn't mean that tyres don't lose grip before they aquaplane?? While I have used slicks in the wet with good results, having already got too many broken bones, I don't feel inclined to push the limits. To explain a little further, the roads I use in north Sheffield are appallingly bad, so while thin tyres might cut through water better, they don't provide the degree of suspension I need from larger tyres (this bike has a rigid frame - & my experience of narrow tyres on wet roads where there are blustery side winds is that I get blown around a lot - NOT my idea of fun whilst in heavy traffic ! ), though for the rides I do, because of my level of fitness ( still getting used to the hills in Sheff. ), I really don't want to go above 1.75" Going back to my point about winter use, it's not just increased rain that's a problem, but such things as mud getting washed out from fields, & possibly snow (as in there's always the chance of being caught out by it, when I've already started a ride [ if I had warning of thicker snow I'd probably use dirt tyres ] ). So, reflecting on it a bit more, maybe what I'm really looking for is the MTB version of what car drivers refer to as "town & country" tyres? So, while I've still got a deal to learn about what tyres are out there, it seems that now I might be looking for a dual road/dirt tyre or possibly a dirt tyre intended for hardpack - as in more knobs to give more grip? And while I'd still like a round progressive profile, I'm not adverse to a softer compound ( though I don't know where to get much info on that, beyond the obvious e.g. dual compound that's shown by dual colours on the tyre). So, any more input would be gratefully received. Cheers, Jim