best width for circuit tyres

[regi]

unfortunately subscribing to the church of offset and fitment has led me to believe that tyre stretch is my only rubber friend

as a result of the aforementioned brainwashing ive got no idea what the appropriate width of a semi-slick tyre is in order to go fast around a race track

Ive got some 17x8 and 17x9 desmond regamasters and want to know what width tyres are most appropriate for circuit racing purposes. I have crapola 215 and 255s on them atm.

aaaand go

[mitchy]

235/255 is about your best bet for those rims with circuit in mind.

[regi]

is the theory to go as wide as you can?

or will extra sidwall flex mellow my grip level?

[MGR]

As a guide:
235 for 8"
255 for 9"

Can vary slightly between different tyre manufacturers. (eg a Bridgestone RE55S is slightly wider than a Toyo R888). Check with the tyre manufacturer's recommendations as to suitable rim width.

[monk_13]

is the theory to go as wide as you can?

or will extra sidwall flex mellow my grip level?

This "extra" sidewall flex you speak of will be almost non exsistant. R-comp have much stiffer sidewalls than street rubber, at lower pressures as well.

[Lonewolf]

price wise, the sweet spot is 235's on a 17" rim

[monk_13]

price wise, the sweet spot is 235's on a 17" rim

Skinny tyred fool!!!! he he he...

But seriously, I am running 255 Yoko a050's on a 9 inch rim with no dramas at all, and cost was around 500 a corner from memory.