ANOTHER TYRE QUESTION SORRY.......
Discussion
Hello everyone.
I have at long last taken the plunge and ordered some new wheels for my car.
I like the classic look of the Lenso BSX alloys and as they are now back in stock have gone for the silver ones,
7.5x16 et25 front and 8.5x17et35 rear.
I personally prefer the look of the 16" rims on the front and will go for 225/45x16 tyres although only Toyo and Yokohama seem to make these at the moment.
My question concerns the rear tyres. The car is a year 2000 model and has 245/45x16 tyres as standard.
i can fit 245/40x17 which gives approximately the same diameter which is less than the 225/40x16 or the 225/55x16 that the car was designed for. I have always felt the 245 x16 tyre looks a little small in the arch so can I fit 255/40x17 tyres. The car is at standard ride height and will remain so even when I fit the new Bilsteins I never fitted to my last car. I believe they will make a world of difference....
There seems to be plenty of clearance with the standard wheels and 245 tyres but do you think the 255's will rub? I know every car is different and to a certain extent it is trial and error but your thoughts would be appreciated.
Regards Chris.
I have at long last taken the plunge and ordered some new wheels for my car.
I like the classic look of the Lenso BSX alloys and as they are now back in stock have gone for the silver ones,
7.5x16 et25 front and 8.5x17et35 rear.
I personally prefer the look of the 16" rims on the front and will go for 225/45x16 tyres although only Toyo and Yokohama seem to make these at the moment.
My question concerns the rear tyres. The car is a year 2000 model and has 245/45x16 tyres as standard.
i can fit 245/40x17 which gives approximately the same diameter which is less than the 225/40x16 or the 225/55x16 that the car was designed for. I have always felt the 245 x16 tyre looks a little small in the arch so can I fit 255/40x17 tyres. The car is at standard ride height and will remain so even when I fit the new Bilsteins I never fitted to my last car. I believe they will make a world of difference....
There seems to be plenty of clearance with the standard wheels and 245 tyres but do you think the 255's will rub? I know every car is different and to a certain extent it is trial and error but your thoughts would be appreciated.
Regards Chris.
The poke and inset will be as above so yes wider on both sides of the wheel
Your preferred choice of 255 is smaller than original 225/55/16
225/55/16 653 diameter
255/40/17 635 Dia
255/45/17 661 Dia with the same poke and inset as the 40 tyre
This tyre is larger but should still fit.
It will be a big tyre though.
The reason I say this is because the front size is also smaller than standard so will look odd. You'd need to go up on the front profile to maintain a rake balance.
Your preferred sizes are good together
Your gearing will be lower, faster acceleration but slower top speed.
The fronts with a 7.5 rim has a different offset and is inset slightly.
Poke us about 3 mm further in
Inset is further in by about 16 mm
A 5 mm spacer would bring your front poke back out which with the bigger rear wheels 8.5 isn't a bad thing but you could leave alone.
Your preferred choice of 255 is smaller than original 225/55/16
225/55/16 653 diameter
255/40/17 635 Dia
255/45/17 661 Dia with the same poke and inset as the 40 tyre
This tyre is larger but should still fit.
It will be a big tyre though.
The reason I say this is because the front size is also smaller than standard so will look odd. You'd need to go up on the front profile to maintain a rake balance.
Your preferred sizes are good together
Your gearing will be lower, faster acceleration but slower top speed.
The fronts with a 7.5 rim has a different offset and is inset slightly.
Poke us about 3 mm further in
Inset is further in by about 16 mm
A 5 mm spacer would bring your front poke back out which with the bigger rear wheels 8.5 isn't a bad thing but you could leave alone.
Edited by ClassicChimaera on Monday 16th January 23:38
Hi Chris, I'd say you may well need to trim your rear inner wheel arch(es) with the 255 tyres if putting the rear end under load (i.e. track use or heavily loaded boot) I noticed this on mine, but only on the passenger side, however not an issue under normal driving if suspension heights set correctly.
ClassicChimaera said:
.... The fronts with a 7.5 rim has a different offset and is inset slightly.
Poke us about 3 mm further in
Inset is further in by about 16 mm
A 5 mm spacer would bring your front poke back out which with the bigger rear wheels 8.5 isn't a bad thing but you could leave alone.
Using the following site, http://www.1010tires.com/Tools/Wheel-Offset-Calcul... the front wheels will have 6mm less inner clearance and poke out a further 6mm too. Poke us about 3 mm further in
Inset is further in by about 16 mm
A 5 mm spacer would bring your front poke back out which with the bigger rear wheels 8.5 isn't a bad thing but you could leave alone.
Edited by ClassicChimaera on Monday 16th January 23:38
The wheel selected for the front has the same offset as a standard 15" wheel (ET25) but are 0.5" wider so this seems accurate to me. I believe you may have calculated using an ET33 on the front such as fitting a TVR rear wheel on the front.
It shouldn't be a problem however, the OP doesn't seem to need a spacer on the front.
Edited by ianwayne on Tuesday 17th January 09:38
Plan of action.
Appeal on here for Chimaera owners with 245 and 255 tyres to let you try their wheels on your car...... then you will know.
I would help, but I have nothing wider than 225 right now, and have never been wider than 235.
It might take some driving, but could save you a mistake. All Chimaeras are different, and each side of each Chimaera is different.
Appeal on here for Chimaera owners with 245 and 255 tyres to let you try their wheels on your car...... then you will know.
I would help, but I have nothing wider than 225 right now, and have never been wider than 235.
It might take some driving, but could save you a mistake. All Chimaeras are different, and each side of each Chimaera is different.
Thanks for the advice!
My new wheels will hopefully be here by the weekend so I will fit a bare wheel and take a look.
Looking at the originals with 245/45x16 tyres it seems that the 255/40x17's should fit as surely there will only be 5mm extra tyre width each side, unless having 8.5" instead of 7.5" wheels makes the tyre fatter too?
With my standard suspension set up there seems to be a lot of room around the tyres, we shall see!
Regards Chris.
My new wheels will hopefully be here by the weekend so I will fit a bare wheel and take a look.
Looking at the originals with 245/45x16 tyres it seems that the 255/40x17's should fit as surely there will only be 5mm extra tyre width each side, unless having 8.5" instead of 7.5" wheels makes the tyre fatter too?
With my standard suspension set up there seems to be a lot of room around the tyres, we shall see!
Regards Chris.
Some can get 255 and wider to fit. I had 235 R888s on my car three years ago, had to raise the ride height to stop the smoke trail behind me. Lent the wheels to another track dayer, he had the same issue - ended up swapping the wheels over between cars - thankfully I had two jacks with me that day.
If they do catch only very slightly on the inside of the outside bodywork, you can cure a lot by raising the ride height. I have always had adjustable dampers on my car - do the standard original Bilsteins have an adjustment available for ride height?
If they do catch only very slightly on the inside of the outside bodywork, you can cure a lot by raising the ride height. I have always had adjustable dampers on my car - do the standard original Bilsteins have an adjustment available for ride height?
Well the new wheels arrived at last and are now the correct size thankfully!
After much thought about the tyres I have taken a gamble and ordered them:
Yokohama AD08R in 225/45x16 front and the 255/40x17 rear.
I'll let you know how I get on, the standard suspension is non adjustable but there appears plenty of wheel arch clearance. famous last words.....
Regards Chris.
After much thought about the tyres I have taken a gamble and ordered them:
Yokohama AD08R in 225/45x16 front and the 255/40x17 rear.
I'll let you know how I get on, the standard suspension is non adjustable but there appears plenty of wheel arch clearance. famous last words.....
Regards Chris.
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