Rear Tyre Width Confusion

[Metalorama]

Hi all, recently had my MOT and ends up I have a nail in my rear tyre so I\'m on the hunt for some new ones. Been reading through many threads on multiple forums and I still can\'t figure out what will fit.

Currently the wheels are 18 x 9.5 ET 20 and the previous owner stretched a 225/40 on there, plenty of clearance with that, but I\'m not keen on that big of a stretch and since I\'m replacing anyway I would like the most rubber I can get on the road.

The rear arches aren\'t rolled, and it\'s not on the cards just now, wondering if anyone has any idea what size of tyre I can run without rubbing? I thought about just going with a 235/40 I know it will still be a fair stretch, but not as bad as it was. Does anyone know if a 245 or even a 255 will fit without rubbing?

Essay over, ha ha, sorry for the massive spiel.

[roborangefd3s]

subscribed, the previous owner of my car stretched a set of 235`s on my 18`s, not sure the rim sizes but they arey super wide rota drifts.

I dunno why anyone would put small tyres on a powerful rear wheel drive car - its not safe in my opinion, I am looking at 285 toyo 888`s - just need to go to a drift day and destroy these maxxis tyres and then I will be in the market for new treads too - interested to see if I need to do any work to get 285`s on - I have 25 mm eibach spacers already.

Thanks

[Metalorama]

No it\'s baffling why you would, I\'d never even heard of stretching tyres before I got the FD as I always slapped the most rubber I could on, but there will be clearance issues if I do that with these and I\'m not buying wheels any time soon, so I\'d like to stick wider tyres on. I don\'t have the cash for all new treads, or I would go better, but gonna stick with the Maxis MZ1 just now cos you can get a pair for under £200 new.

[skybusr34]

This whole " lets stick stretched tires" looks terrible, totally makes the car handle worse as you have zero tire roll. The craze started with the vw boys when I lived in Germany 20years ago . This was because they were slow and they scrapped their way everywhere. In a cool way.

Why the hell anyone would want to ruin a car with such amazing handling is beyond me.

[boosted]

i had 265 40 18 on my rear dropped 30mm and never rubbed touched or otherwise....cant remember the offset though....which i think you need to get write....
Front was more of an issue though going 18\'s had 225 35\'s on there and dropped 30 mm and would occassionally scrub on arch liners.

I dont like the stretched look either.....

[Grant Monkhouse]

265/35/18s fit easy on the rears, no rubbing. Fronts 235/40/18 with a little rubbing, no spacers, just deep dish

[Metalorama]

Yeah it\'s the offset that\'s confusing me most, et 20 isn\'t too common and I can\'t find a damn thing about that offset and a 9.5" wheel. I know the fronts are et 35 8.5" with 225/40 and no clearance issues.

Thinking I\'ll have to stretch some unfortunately as the wheel sits flush with the outside of the arch so tyres that fitted right would rub. I don\'t mind the stretched look, but it\'s not for show so function over form every time.

[Metalorama]

265/35/18s fit easy on the rears, no rubbing. Fronts 235/40/18 with a little rubbing, no spacers, just deep dish

That\'s good to know, how much does offset effect this? I\'m a total noob when it comes to working these things out, always bought wheels with near oem offset for other cars.

[skybusr34]

I\'ve got 275 on a 10.5 et 42 no problem with rub

[boosted]

goto //www.rochford.tyres mate excellent guide on there for sizes offset pcd explained....visited it myself quite a few time:yes

[boosted]

link dont work but type in manually....

[probedb]

I have front 235/40 with 18x8.5+32 offset and 265/35 18x9.5+35 on the rears, zero rub on the back and the only rub on the front is the arch liner on full lock. Obviously it depends if you\'re lowered or not too.

[Metalorama]

Well after having a good look the other night I really do think I\'ll have issues with anything over a 235/40 on the rear with that offset

[fil_auto]

Well after having a good look the other night I really do think I\'ll have issues with anything over a 235/40 on the rear with that offset

I\'m surprised to hear this, for the rear with a 9.5J rim... usually there\'s loads of room.

Are you running stock susp or is it lowered heavily?

for ref: I ran a 255/40/17 on a 9J on the rear et38. Fitted no probs and I had plenty of rooms to spare. Since then, I\'ve bolted on 15mm spacers to the rear, making that et23, sits flush, still no worries, rubbing etc.... Mine runs pretty low at the rear too.
Only diff is, my rear arches are rolled just slightly at the top.

HTH and just for ref, here\'s a pic of mine. 9j + 235/45/17 front, 9J  + 255/40/17 rear. Quite low as you can see, no probs at all

[Grant Monkhouse]

9.5" is 240mm so I would thought a 255 tyre with a 35 profile would be ideal. Maybe worth going to a tyre shop and ask them what they recommend. Take the original wheel and tyre size for the rx7 and they will be able to tell you what will work.