Kimmo wrote:Can anyone tell me the widest I can go without any worries about scrubbing or guard rolling, and what offset? Or rather, the closest to that I'm likely to find on the used market? Sticking with 18s.
And is there a lightweight racing sort of Enkei or BBS or whatever that's popular enough to find second hand?
Kimmo wrote:Can anyone tell me the widest I can go without any worries about scrubbing or guard rolling, and what offset? Or rather, the closest to that I'm likely to find on the used market? Sticking with 18s.
And is there a lightweight racing sort of Enkei or BBS or whatever that's popular enough to find second hand?
JB25 wrote:Kimmo wrote:Can anyone tell me the widest I can go without any worries about scrubbing or guard rolling, and what offset? Or rather, the closest to that I'm likely to find on the used market? Sticking with 18s.
And is there a lightweight racing sort of Enkei or BBS or whatever that's popular enough to find second hand?
Having read this whole thread from start to finish it's very dependant on your suspension setup. Stock suspension seems to allow a bit more poke and can easily go to 235's on a +45 offset. Lower the car though or add coilovers to the equation, and it may be less than that.
I'm only running stock suspension atm, but in case I change it later, I'm thinking +48 would be better in 18 x 8 or 8.5 inch rims. I also want to run 235's or 245's since they're a cheaper size.
On another note, would anybody happen to know how much the standard 18 inch GT-B wheels weigh? I'd Ideally like something a bit lighter than these without going crazy on the expense.
Edit: found a guy in the US weighed them and came up with 25.5 pounds or 11.57kg
195mm = 6.5", 7" and 7.5"
205mm = 6.5", 7" and 7.5"
215mm = 6.5", 7", 7.5" and 8"
225mm = 7", 7.5", and 8"
235mm = 8", 8.5", and 9"
245mm = 8", 8.5", and 9"
255mm = 8.5", 9", and 9.5"
265mm = 8.5", 9", and 9.5"
275mm = 9" and 9.5"
285mm = 9" and 9.5"
Kimmo wrote:I've got a sixth GT-B rim here with no tyre, been meaning to weigh it.
Luggage scales show 11.49kg.
Hey, would the lip on the rim be thinner on light wheels? GT-B is ~13.3mm. Although looking at the clip on a wheel weight on the back, that suggests it's uniform across the board... but come to think of it, that only applies to the inner lip.
Currently have 225s on em, and the tyre looks pretty flush. If the same tyres were mounted on a 7.5, I'm concerned the lip would be exposed, so I'm thinking 235 or maybe 245? But this thread says I shouldn't go wider than 225 on 7.5...195mm = 6.5", 7" and 7.5"
205mm = 6.5", 7" and 7.5"
215mm = 6.5", 7", 7.5" and 8"
225mm = 7", 7.5", and 8"
235mm = 8", 8.5", and 9"
245mm = 8", 8.5", and 9"
255mm = 8.5", 9", and 9.5"
265mm = 8.5", 9", and 9.5"
275mm = 9" and 9.5"
285mm = 9" and 9.5"
But that doesn't seem right; the 225s look pretty damn goldilocks on the stock 7s. Is it the case that anything wide enough to protect your rims is too much tyre?
Somehow this pic makes it look like a bit more tyre... looks a bit flusher than this IRL.
bigBADbenny wrote:Various series/model tyres from various manufacturers have different shoulders, rim guards, sidewall stiffness, sidewall profile etc.
Its a completely mixed bag.
Currently the answer is PS4’s to fit your rim width.
Be generous if you want more rim protection, go narrower for fitment, handling etc.
JB25 wrote:Kimmo wrote:I've got a sixth GT-B rim here with no tyre, been meaning to weigh it.
Luggage scales show 11.49kg.
Hey, would the lip on the rim be thinner on light wheels? GT-B is ~13.3mm. Although looking at the clip on a wheel weight on the back, that suggests it's uniform across the board... but come to think of it, that only applies to the inner lip.
Currently have 225s on em, and the tyre looks pretty flush. If the same tyres were mounted on a 7.5, I'm concerned the lip would be exposed, so I'm thinking 235 or maybe 245? But this thread says I shouldn't go wider than 225 on 7.5...195mm = 6.5", 7" and 7.5"
205mm = 6.5", 7" and 7.5"
215mm = 6.5", 7", 7.5" and 8"
225mm = 7", 7.5", and 8"
235mm = 8", 8.5", and 9"
245mm = 8", 8.5", and 9"
255mm = 8.5", 9", and 9.5"
265mm = 8.5", 9", and 9.5"
275mm = 9" and 9.5"
285mm = 9" and 9.5"
But that doesn't seem right; the 225s look pretty damn goldilocks on the stock 7s. Is it the case that anything wide enough to protect your rims is too much tyre?
Somehow this pic makes it look like a bit more tyre... looks a bit flusher than this IRL.
Thanks for the confirmation on the rim size. It looks like 9-9.5kg is fairly easy to obtain without having to drop megabucks on a set of rims (ie 3-4k) so I'd be pretty happy with that.
Just one thing though 18 inch GT-B rims are 7.5 inch already. So yes the guide is correct. Tyre shops wouldn't even offer me 235's when I told them the rim size, not legal apparently.
JB25 wrote:Just one thing though 18 inch GT-B rims are 7.5 inch already. So yes the guide is correct. Tyre shops wouldn't even offer me 235's when I told them the rim size, not legal apparently.
Kimmo wrote:JB25 wrote:Just one thing though 18 inch GT-B rims are 7.5 inch already. So yes the guide is correct. Tyre shops wouldn't even offer me 235's when I told them the rim size, not legal apparently.
Nope, 7.
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