Anyone gone bigger ? (on tyres that is)
Anyone gone bigger ? (on tyres that is)
Author
Discussion

Biggriff

Original Poster:

2,312 posts

313 months

Friday 26th October 2007
quotequote all
Been reading the NobleForums stuff and a lot of them have gone up a size or two front and rear.

Anyone on here moved up from the normal 225 front and 265 rear?

Richard

snuffy

13,221 posts

313 months

Friday 26th October 2007
quotequote all
No.

Adrian W

15,493 posts

257 months

Friday 26th October 2007
quotequote all
ive been thinking about 295's on the back, I can't see a downside but car manufacturers must choose tyre sizes for a reason

MadMacMcMad

1,267 posts

283 months

Friday 26th October 2007
quotequote all
I've got 285's on the back. I don't think you'll get anything bigger under the clam.
Please post if you are successful with 295's tho
I did this to try and get some buffer between curb and rim.

Edited by MadMacMcMad on Friday 26th October 14:57

Biggriff

Original Poster:

2,312 posts

313 months

Friday 26th October 2007
quotequote all
In the USA the front tyres are 235 as standard so some degree of flexibility seems ok.

Many of the US guys run 285+ rears and 245 fronts and they dont seem to have any issues, although clearly wear and component stress is something to consider.

Most manufacturers choose tyres on cost after the basic handling/grip characteristics have been fulfilled and I cant see any reason why Noble would be that much different.

I suspect the 225/265 combination was the best for meeting the ride v handling equation and were generally available sizes, which I suppose begs the question why would anyone want to change that compromise.




Adrian W

15,493 posts

257 months

Friday 26th October 2007
quotequote all
I won't have the arch/clam problem as I run lot's of camber

RobP

2,097 posts

270 months

Friday 26th October 2007
quotequote all
Adrian W said:
ive been thinking about 295's on the back, I can't see a downside but car manufacturers must choose tyre sizes for a reason
Yeah - i'd be much more concerned with fiddling at the front end. Lotus, who know a thing or two about set-up/handling kept horribly skinny tyres on the front of the S2 Elise to maintain best feel and handling characteristics. My 5 series Beemer on the other hand has comparatively chunky 265s on the front and these are blamed for the 'dead' feel in the straight-ahead position.

ThatPhilBrettGuy

11,810 posts

269 months

Friday 26th October 2007
quotequote all
RobP said:
Yeah - i'd be much more concerned with fiddling at the front end. Lotus, who know a thing or two about set-up/handling kept horribly skinny tyres on the front of the S2 Elise to maintain best feel and handling characteristics.
yes I think playing with the fronts wouldn't be worth the effort. The front/back tyre size difference on some cars is very surprising. The GT has 235/45 18's on the front and 315/40 19's on the back. The large sidewall on the rears (for the size tyre) is to keep it looking like a GT40.

When to put one of the GT rears next to a Noble rear, it makes the Noble wheel/tyre combo look like it's off a shopping trolley!

Biggriff

Original Poster:

2,312 posts

313 months

Friday 26th October 2007
quotequote all
Think I will stick to normal compromise

mgbond

6,749 posts

261 months

Friday 26th October 2007
quotequote all
RobP said:
Adrian W said:
ive been thinking about 295's on the back, I can't see a downside but car manufacturers must choose tyre sizes for a reason

Yeah - i'd be much more concerned with fiddling at the front end. Lotus, who know a thing or two about set-up/handling kept horribly skinny tyres on the front of the S2 Elise to maintain best feel and handling characteristics. My 5 series Beemer on the other hand has comparatively chunky 265s on the front and these are blamed for the 'dead' feel in the straight-ahead position.


I thought that Lotus changed the front tyres on the S2 to thinner ones than on the S1 because alot of owners span the S1's (I did) so the thinner tyre was to add a bit of understeer to make it a bit safer.

Bondy

RobP

2,097 posts

270 months

Friday 26th October 2007
quotequote all
mgbond said:
RobP said:
Adrian W said:
ive been thinking about 295's on the back, I can't see a downside but car manufacturers must choose tyre sizes for a reason
Yeah - i'd be much more concerned with fiddling at the front end. Lotus, who know a thing or two about set-up/handling kept horribly skinny tyres on the front of the S2 Elise to maintain best feel and handling characteristics. My 5 series Beemer on the other hand has comparatively chunky 265s on the front and these are blamed for the 'dead' feel in the straight-ahead position.
I thought that Lotus changed the front tyres on the S2 to thinner ones than on the S1 because alot of owners span the S1's (I did) so the thinner tyre was to add a bit of understeer to make it a bit safer.

Bondy
Exactly - they altered the handling characteristics of the car and made it more controllable at the limit. I'd leave the Nobles fronts well alone.

gadgeroonie

5,362 posts

265 months

Friday 26th October 2007
quotequote all
in the states wider rubber has been fitted - but you need a special wishbone to clear the wider wheel

probably great for the drag strip - but it might upset the balance of the car

alternatively traction control could help tame the car without the wider rubber


Twerlie

1,682 posts

296 months

Friday 26th October 2007
quotequote all
gadgeroonie said:
alternatively traction control could help tame the car without the wider rubber
...or you could learn to drive! wink

gadgeroonie

5,362 posts

265 months

Saturday 27th October 2007
quotequote all
Twerlie said:
gadgeroonie said:
alternatively traction control could help tame the car without the wider rubber
...or you could learn to drive! wink
fair point, i wouldn't admit to being the next Senna - but sometimes TC can give you a safety margin that will save you a few quid in repairs


No Lotus

133 posts

260 months

Saturday 27th October 2007
quotequote all
RobP said:
Adrian W said:
ive been thinking about 295's on the back, I can't see a downside but car manufacturers must choose tyre sizes for a reason
Yeah - i'd be much more concerned with fiddling at the front end. Lotus, who know a thing or two about set-up/handling kept horribly skinny tyres on the front of the S2 Elise to maintain best feel and handling characteristics. My 5 series Beemer on the other hand has comparatively chunky 265s on the front and these are blamed for the 'dead' feel in the straight-ahead position.
I use stock tire widths on mine, but the S2 is quicker on wider 225 fronts and 245 rears, which is about as wide as the bodywork will handle.

No Lotus

133 posts

260 months

Saturday 27th October 2007
quotequote all
RobP said:
mgbond said:
RobP said:
Adrian W said:
ive been thinking about 295's on the back, I can't see a downside but car manufacturers must choose tyre sizes for a reason
Yeah - i'd be much more concerned with fiddling at the front end. Lotus, who know a thing or two about set-up/handling kept horribly skinny tyres on the front of the S2 Elise to maintain best feel and handling characteristics. My 5 series Beemer on the other hand has comparatively chunky 265s on the front and these are blamed for the 'dead' feel in the straight-ahead position.
I thought that Lotus changed the front tyres on the S2 to thinner ones than on the S1 because alot of owners span the S1's (I did) so the thinner tyre was to add a bit of understeer to make it a bit safer.

Bondy
Exactly - they altered the handling characteristics of the car and made it more controllable at the limit. I'd leave the Nobles fronts well alone.
The S2 noticeably understeers with the narrower fronts fitted to cars without the "sports suspension" setup.

RobP

2,097 posts

270 months

Monday 12th November 2007
quotequote all
MadMacMcMad said:
I've got 285's on the back. I don't think you'll get anything bigger under the clam.
Please post if you are successful with 295's tho
I did this to try and get some buffer between curb and rim.

Edited by MadMacMcMad on Friday 26th October 14:57
Can't get hold of any 265/35 Corsa's, but can get hold of a couple of 285/30 Corsas. Did you find ride quality/handling suffered with the lower profile rears (neccessary to maintain the same rolling profile, or some such thing)??

l6nex

356 posts

282 months

Monday 12th November 2007
quotequote all
Fitted my new 20" inch wheels at the weekend and they have 295 tyres on the rear and they fitted fine! still got 225 on the front though.

Dave

ajg31

1,455 posts

236 months

Monday 12th November 2007
quotequote all
l6nex said:
Fitted my new 20" inch wheels at the weekend and they have 295 tyres on the rear and they fitted fine! still got 225 on the front though.

Dave
One way to ruin the ride and handling smile Sure they look nice though, and pics?

Biggriff

Original Poster:

2,312 posts

313 months

Monday 12th November 2007
quotequote all
i've now gone 285 on the rear and 235 on the front. Toyo R888. £600. Let you all know how I get on but the signs are promising.