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A higher offset than 40 (maybe 42-44) should be fine on the 11X18 wheels. You may also want to check with Tramont to see what they say. The offset of 40 barely clears the brakes but it looks great on the car. I can't speak to the correct offset for a 10.5X18 wheel.
About to pull the trigger on the Tramont, but just want to make sure so is it 8.5x18 ET45 or 8x18 ET46 that people are getting for the WB 993 C4S front with 235 tires? I think the rear I can go with 11x18 ET40 to clear the big red and not so tight with 295 tire. Can anyone confirm? Thanks.
Originally Posted by ptam
My Tramont wheels arrived and I got them mounted today. It looks great. Centers are painted GT2 Grey as an extra charge option from Tramont. I wanted a little contrast with the car (Polar Silver C4S)
Wheel size 11 X 18 offset 40 295/30/18 Michelle PS
and 8 X 18 offset 46 235 235/40/18 Michelle PS
Perfect fit. The rears are tight but clears brakes and no rubbing.
Some of the numbers look at bit suspect - i.e. why are the rears of the MY02's not much heavier than the fronts, but they are so different on the Hollow Spokes ..
Cheers,
Mike
If you look at both wheels carefully, you can see why.
The turbo1 wheel has a flat face, and is the same on both front and rear. Another way of thinking about it - the spokes are 'level', at 90 degrees to the hub.
Therefore, for the wheel to sit at the correct offset, there is a required 'depth' of metal in the wheel, down to where it mates against the hub.
The rear turbo1 wheel needs a larger depth of metal in the hub-mating area to achieve this, even with offset 65, so it is significantly heavier than the front wheel. On the WB cars, offset 40, you need another 15mm of metal, and so it's heavier again.
Shift to the MY02 - it does not have a flat face. The spokes are curved. The front wheel spokes curve out then in towards the hub to give the shape and to achieve the 'correct' depth of hub-mating metal for strength.
Now look at the rear - the spokes curve-in at a greater angle than the fronts - and then have a similar amount of hub-mating material for strength, maybe a bit more on the fatter rears.... but it does not need the depth of metal that the turbo1 rear wheel needs to achieve the same offset.
The difference in curvature between front and rear MY02s is subtle, and difficult to photograph, but it's enough.
If you have MY02s, go and have a look
The rest of you, I know you don't believe me.
Well here are some photos - not an easy thing to photograph, but basically the depth of metal in the MY02 10J is maybe even less than the turbo1 8J - the turbo1 10J is significantly thicker.
PS don't laugh at my skanky MY02 - it's a spare!
MY02 10J ET65
Turbo 1 8J
Turbo 1 10J ET65
Last edited by orangecurry; 01-23-2021 at 08:38 AM.
Just picked up a set of Tramont cup 2s from FDM for my NB C4. With Michelin PS2 in F 225/40/18 R 265/35/18 we have <1/2" clearance to the fender edge in the rear (front is fine). I like the stance so I'm not keen to raise her up the amount that would be required to avoid rubbing, but also not keen about cutting or rolling the fenders (low mileage car, original paint etc). Anyone else seeing this issue with Tramont + PS2? Darin was surprised how much poke the tires have beyond the rim. What would you do??
Just picked up a set of Tramont cup 2s from FDM for my NB C4. With Michelin PS2 in F 225/40/18 R 265/35/18 we have <1/2" clearance to the fender edge in the rear (front is fine). I like the stance so I'm not keen to raise her up the amount that would be required to avoid rubbing, but also not keen about cutting or rolling the fenders (low mileage car, original paint etc). Anyone else seeing this issue with Tramont + PS2? Darin was surprised how much poke the tires have beyond the rim. What would you do??
What offsets did you select and how high is suspension?
You could play with fender lip, ride height, tires, or offset…. From least to most costly. Perhaps if you dont want to change the ride height or tires, you could order two more wheel centers from Tramont with higher offset and reassemble the wheels on your existing barrels.
your car is identical to mine...michelin's tend to have that poke to protect the rims. oem for 10x18 is ET65, and with a 265 tire you should be fine. i'd suggest adding some camber and/or change your tires if you love the stance and don't want to roll the fenders.
Thanks both, need to confirm with FDM the offset on the rears. I'm guessing he ordered ET59 since that seems to be Tramont's recommended offset. But I see that others have ordered ET65. In that case the extra 6mm might be enough to clear the lip ($$ option though). Alternatively I might just have to increase the ride height. It is right around RS, which might be too low with this combination of wheels and tires.
Thanks both, need to confirm with FDM the offset on the rears. I'm guessing he ordered ET59 since that seems to be Tramont's recommended offset. But I see that others have ordered ET65. In that case the extra 6mm might be enough to clear the lip ($$ option though). Alternatively I might just have to increase the ride height. It is right around RS, which might be too low with this combination of wheels and tires.
09-01-2017, 07:00 PM
