New wheels but have some tyre questions

[grahambone]

Evening All

FIrst post after recently purchased a Griff 500 after selling my Chimaera 21yrs (the itch never faded)

first of all apologies for bringing up a well-covered topic, but just wanted to get some feedback on tyre sizes

I've purchased a set of SP12's 17x7 et25 front and 18x8 et35 rear

What is the best tyre choice to avoid wheel arch rub? I've honed it down to two options compared to the original:

would I get away with the 225/45/17 and 245/40/18, albeit a larger diameter by about 20mm?

Front ------------------------------------------------Rear
Size---------- Diameter--------Circum-------- Size--------Diameter --------Circum
225-50-15 --- 606 --- --------1903.8 --- -----245-45-16 --- 626.9 --- ------1969.5

225-45-17 --- 634.3--- --------1992.7 --- ----245-40-18 ---- 653.2 --- ------2052.1
or
215-40-17 --- 603.8--- --------1896.9 --- ----245-35-18 ---- 628.7 --- ------1975.1


Who's running a similar setup and what tyres?

Thanks in advance

[2 sMoKiN bArReLs]

grahambone said:

purchased a Griff 500 after selling my Chimaera

Dunno, but you are a traitor

just spoofing, have you worked out how to stow the roof in the boot?

[sixor8]

You asked this on Wednesday and it was covered. A double entry?

https://www.pistonheads.com/gassing/topic.asp?h=0&...

[grahambone]

2 sMoKiN bArReLs said:

grahambone said:

purchased a Griff 500 after selling my Chimaera

Dunno, but you are a traitor

just spoofing, have you worked out how to stow the roof in the boot?

[grahambone]

Yes took few attempts. Now mastered

[The Red Baron]

Evening. I’ve got the same wheel sizes. I chose Uniroyal Rainsport 3s. I use mine as a daily driver, so needed something good in the wet.

I went for 215/40 R17 on the front. I went for the slightly narrower tyre as I don’t have power steering. I went for 245/35 R18 on the rear. These gave me pretty close to the same rolling diameter as the original 15/16 Estorils.

I found running the pressures at 24psi front and 26psi rear was best for me,

Hope that helps.