Thanks, sounds like I can keep my tyres on and just keep riding
Mind you, I love my GSA so much and its in such great condition that its almost a shame to subject it to winter riding

. I wonder if theres room in my garage for a 2nd bike for winter?
If you can time your tyre change for new tyres so you have the maximum tread as we go into autumn, that might be an idea, but as others have said, they're all pretty good nowadays.
There are, IMO, other and more important considerations for using the bike all year around.......a good treatment of something like ACF50 or some similar product as the weather starts to turn, for example.
It will help prevent corrosion and effectively seals the bike up under its coating.....it will look crap, but the crap will wash off really well afterwards.
Changing various mild steel nuts and bolts for stainless ones (of the right strength.....research it here or online, SS has different stress properties from other steels) will also help keep some parts in good working order under the ACF50 and are less likely to seize up through salt induced corrosion.
If you really are intending to go all year around, (and I know this is well Off Topic but it's still genuine advice) then get yourself some muffs and a shytebag.....you WILL look silly (according to the shallow) but you will also be warm and dry and MUCH happier riding throughout the winter
The tyres are much less of an issue than your comfort, although you will have to tune your riding style and tweak up your obs skills for riding through the winter.......silly stuff like becoming aware of going into dips, under trees, which side of the road is the early sun hitting......most people who drive cars never really have to think about that stuff, but an all-year round rider HAS to unless they want to find themselves sliding up the road
In the same way that people who ride off-road tend to make better road riders because they have a better understanding of slippery stuff and better obs, a rider who uses a bike all year round will also, usually, be a much better rider on average.....and won't feature in the annual Easter Death list that arises each and every sad year when the twats with overpower3ed bikes and no idea how to ride them push them out of their garages on the first sunny Sunday, only to be splatted up the highway with shocking predictability.
Sorry,
