RyanT
Forum User
What tyre?
Any car nerd worth their salt should recognise that treat pattern. AD08R.
What tyre?
I put 32 psi in mine.
I was under the impression that you required more psi the lower the profile of the tyre, relative to the standard tyre and wheel spec.
Lower profile means stiffer tyre construction, but needs higher pressure for proper inflation, or your rim will hit the road on bumpy surfaces/holes.
So if its say 28 psi for a 195 70/14, you would be at approx 32 psi if you changed to a 195 50/16.
I remember reading something like that many years ago, and Ive never read anything since to contradict it.
I've used R1R in 225/45/16 which were great but are no longer available. So I've moved to ADO8R in 225/45/15, not driven on them yet though, but have them fitted to my other car in which they work great. Looking to move to Pirelli P Zero Trofeo Rs for the rear in 245/45/16 as thats as big as I can get without going to 17s.
Do you recall what pressures you ran on the toyos?
I thought you needed a little more PSI in wider tyres so the entire width of the tyre contacts the road and not just the shoulders. I didn't think it was down to the profile per se.
I don't recall - it was a long time ago! I'm not sure F1 tyres are made the same way as road tyres.Who told you that? F1 cars run low 20s psi.
...............just heard back from Toyo UK who asked for original tyre size/PSI along with the vehicle weight..........
I don't recall - it was a long time ago! I'm not sure F1 tyres are made the same way as road tyres.
Perhaps it's just that pressures are more critical with wider tyres so you get a good contact patch and more even wear?
So what pressure (cold) do you run at and what tyres?
I don't think Moggy will damage his wheels at 27psi (cold).
As usual I'm going from my experiences and a lot of my decision is based on grip.