I'm just guessing, but I suspect that a lot of the 'hydro-planing' issues that some have when running specific brands of car tires on their Spyders is simply that they are still running the placard pressure in a much more robust tire, or at least running a pressure that's too high for that particular tire/compound/tread pattern under the relatively light load of their Spyder - most robust car tires probably only need something like that 24psi you are running in yours, Bob, in order to carry the light load of the Spyder & yet still flex enough to get warm enough to provide good traction & pump the water out of the tread when necessary!! I too run Kumho Solus tires, but I've gone a little taller in profile & as a result I get the best ride, grip, & wear at a slightly lower pressure again - usually 20-22psi up the back & 14-16psi up front!! I haven't got 60+K outta them yet (only 20 odd K so far) but the fronts are looking pretty good atm & look like they stand a fair chance of getting up there in the mileage. :thumbup:
For those who work better with graphics, this Les Schwab website
https://www.lesschwab.com/tires/performance-siping has some good graphics explaining all this stuff, even tho they are really talking particularly about the aftermarket performance siping they provide; but the info & graphics still applies & should make it clearer.
And after reading/looking at all that, you should be able to see why that really soft compound winter-tread Continental tire that Blue_Vgr posted about might be a good winter tire option & stick like ****e to a blanket on wet &/or icy surfaces!! But as someone else mentioned, come summertime it's likely to be noisy & wear out fairly quickly!!
pps:
Your choice of Tires, tire tread patterns, & even tire pressures are almost always going to be somewhat of a compromise; you might need to drop your pressures & compromise a small amount on potential tire life to get better traction, or you could prefer to raise the pressure a bit for better life but accept the cost in terms of traction, but somewhere in there will be the right balance of tire tread, brand, pressure etc for you in terms of ride, handling, tire life, traction, & cost! But remember, don't go too far in either direction with your pressures or you'll loose out on too much; & also that because of all the variables that can have an impact on all these things, what's right for you might not be right for anyone else, even if they are riding on the same roads in the same weather on a similar Spyder!!
Thanks! :thumbup:
