[ATX_G80]

Picked up the car today and absolutely love the wheels on the car. Pictures do not do justice. Very happy with them.

Also, is anyone using hub centric rings?

[mydxb]

Originally Posted by ATX_G80

Picked up the car today and absolutely love the wheels on the car. Pictures do not do justice. Very happy with them.

Also, is anyone using hub centric rings?

great ride and wheels!

yes I am using hub centric rings for the TE37? if you are not using them, do you notice any vibration ?

[ATX_G80]

Originally Posted by mydxb

great ride and wheels!

yes I am using hub centric rings for the TE37? if you are not using them, do you notice any vibration ?

Very very slight.

Do you have a smooth ride with them?

Also where did you order them from and sizes?

Thanks!

[mydxb]

Originally Posted by ATX_G80

Very very slight.

Do you have a smooth ride with them?

Also where did you order them from and sizes?

Thanks!

I got it from this company. both my wheels and the hub rings. I am not sure what size since they included it as part of the wheels. the box that came with it did not mention any size. but it was perfect fit.

mine for most of the time it is a smooth ride!

the G8x stock center bore size is 66.5m

Rays 20' M spec is 73.1mm

you can email them for exact sizing

https://mkmotorsports.com.au/collect...stom-hub-rings

[Ariboon]

FISH22 MMM.PWR Any of you guys using hubcentric rings 66.5 to 73.1? Or just ensuring proper tire mounting?

I have the logic that the G80 is not a hub-centric car because the OEM setup doesn't use studs and lugnuts. Cars that use lug bolts are called lug-centric, and the centering of the wheel on the rotor/hub is done via the action of the lug bolts. So while it matters a lot to have the right PCD size on a hub-centric lugnut car, it doesn't matter much at all on a lug-centric lug bolt car. I could be wrong.

[FISH22]

Originally Posted by ATX_G80

Picked up the car today and absolutely love the wheels on the car. Pictures do not do justice. Very happy with them.

Also, is anyone using hub centric rings?

Look awesome!!

[FISH22]

Originally Posted by Ariboon

FISH22 MMM.PWR Any of you guys using hubcentric rings 66.5 to 73.1? Or just ensuring proper tire mounting?

I have the logic that the G80 is not a hub-centric car because the OEM setup doesn't use studs and lugnuts. Cars that use lug bolts are called lug-centric, and the centering of the wheel on the rotor/hub is done via the action of the lug bolts. So while it matters a lot to have the right PCD size on a hub-centric lugnut car, it doesn't matter much at all on a lug-centric lug bolt car. I could be wrong.

I actually did install plastic rings I found on Amazon. I wasn't planning on it as I had the same logic as you, but the raceshop I go to for all my work, strongly recommended them no matter what. They guy said even lug centric setups can display vibrations without hub centric rings.

My ride right now is extremely smooth, except for high speeds (Mexico speeds). I feel very small cyclic irregularities. They may need a better balance job.

[FISH22]

Here are the ones I purchased, perfect fit on the hub and wheel:

[ATX_G80]

Originally Posted by FISH22

Here are the ones I purchased, perfect fit on the hub and wheel:

I just ordered this exact set! Thanks for the info!

[Ariboon]

Originally Posted by FISH22

Here are the ones I purchased, perfect fit on the hub and wheel:

Appreciate it fish! Anyone curious, circuit performance makes both a plastic and aluminum version for 73.1 to 66.6.

[FISH22]

Originally Posted by ATX_G80

I just ordered this exact set! Thanks for the info!

Awesome and no problem!

[FISH22]

Originally Posted by Ariboon

Appreciate it fish! Anyone curious, circuit performance makes both a plastic and aluminum version for 73.1 to 66.6.

No problem! I do wish I bought the aluminum ones. Plastic ones usually don't last long with multiple wheel removals.

[MMM.PWR]

My alignment guy had a set of aluminum hubcentric rings laying around and they fit my car perfect so he gave them to me. Right now I only have them on the rears, fronts are very smooth. Next time I remove the fronts I will add the rings though. Dealing with some vibrations in the rear due to the tires not sitting perfectly on the wheels. Waiting on two new tires to come in and see how they fit. Currently, I get a small amount of vibration (maybe it's just my butt feeling things..) above 80 mph.

[Ariboon]

Originally Posted by FISH22

No problem! I do wish I bought the aluminum ones. Plastic ones usually don't last long with multiple wheel removals.

I went and ordered the plastic, didn't want to worry about the aluminums seizing to the hub or wheel. I figured when I track on rare occasions, I can just buy another set of aluminum for that day since they are cheap enough.

[jeegunkim]

I have a G20 (my G80 is on the way, ordered in February ) with TE37SL's, same bolt pattern and hub as the G80. I did end up putting on hub centric rings. After the initial install of the wheels/tires, I noticed that the steering wheel would shake at certain speeds, making the car feel pretty unstable. I installed some lightweight aluminum hub centric rings from Amazon and BOOM, all was fixed.

[ATX_G80]

Originally Posted by MMM.PWR

My alignment guy had a set of aluminum hubcentric rings laying around and they fit my car perfect so he gave them to me. Right now I only have them on the rears, fronts are very smooth. Next time I remove the fronts I will add the rings though. Dealing with some vibrations in the rear due to the tires not sitting perfectly on the wheels. Waiting on two new tires to come in and see how they fit. Currently, I get a small amount of vibration (maybe it's just my butt feeling things..) above 80 mph.

Update. Had the rings put on and car feels great and no vibration…..except over 80. Get small vibration in the wheel. Will have the balance checked on the wheels Monday.

[FISH22]

Originally Posted by ATX_G80

Update. Had the rings put on and car feels great and no vibration…..except over 80. Get small vibration in the wheel. Will have the balance checked on the wheels Monday.

I get some slight slight vibrations a little above that speed. I could probably use a better balance.

[MMM.PWR]

I just picked up the new tires from the shop and dropped them off with my wheel guy who will mount and balance.

This time, the spec I got says "NO" at the end and seem to be more square / wider than the ones I have mounted on the wheels and will be removing - those have a "MO1" on the side. Apparently, the first ones are a Mercedes spec, and these are Maserati.

I don't think Discount Tire knows that they gave me different tires, but hopefully these are a better fit. From what I could see on FISH22's wheels, these should be like his and look more square.

I'll say this, retail shops suck at balancing tires. I don't trust Discount Tire to mount and balance my stuff on this car.

Second note: I have my oem 285 tires up front, zero vibrations, regardless of speed, and no rings (although I have them, just no need to mount them right now and remove the wheels).

[Ariboon]

Originally Posted by MMM.PWR

I just picked up the new tires from the shop and dropped them off with my wheel guy who will mount and balance.

This time, the spec I got says "NO" at the end and seem to be more square / wider than the ones I have mounted on the wheels and will be removing - those have a "MO1" on the side. Apparently, the first ones are a Mercedes spec, and these are Maserati.

I don't think Discount Tire knows that they gave me different tires, but hopefully these are a better fit. From what I could see on FISH22's wheels, these should be like his and look more square.

I'll say this, retail shops suck at balancing tires. I don't trust Discount Tire to mount and balance my stuff on this car.

Second note: I have my oem 285 tires up front, zero vibrations, regardless of speed, and no rings (although I have them, just no need to mount them right now and remove the wheels).

N0 indicate Porsche designed ps4s. I’d recommend getting blackwall (generic/not made for a specific manufacturer). If you search tire rack ps4s in 295/30/20, you can see the different types of ps4s available.

[FISH22]

Originally Posted by MMM.PWR

I just picked up the new tires from the shop and dropped them off with my wheel guy who will mount and balance.

This time, the spec I got says "NO" at the end and seem to be more square / wider than the ones I have mounted on the wheels and will be removing - those have a "MO1" on the side. Apparently, the first ones are a Mercedes spec, and these are Maserati.

I don't think Discount Tire knows that they gave me different tires, but hopefully these are a better fit. From what I could see on FISH22's wheels, these should be like his and look more square.

I'll say this, retail shops suck at balancing tires. I don't trust Discount Tire to mount and balance my stuff on this car.

Second note: I have my oem 285 tires up front, zero vibrations, regardless of speed, and no rings (although I have them, just no need to mount them right now and remove the wheels).

These are the ones I have, N0 Porsche. Happy with how they fit. Like you mentioned, they're a more square fit. Nice bulgy/meaty look. Love it.

[Ariboon]

Originally Posted by FISH22

These are the ones I have, N0 Porsche. Happy with how they fit. Like you mentioned, they're a more square fit. Nice bulgy/meaty look. Love it.

Maybe I’ll end up with the N0 but my speculation is Porsche made the side wall thicker to compensate for the weight for rear motor. Can’t speak for performance or thread life though.

[MMM.PWR]

Originally Posted by Ariboon

N0 indicate Porsche designed ps4s. I’d recommend getting blackwall (generic/not made for a specific manufacturer). If you search tire rack ps4s in 295/30/20, you can see the different types of ps4s available.

Interesting, and indeed I thought I was getting the generic/blackwall ones when I ordered originally. Discount Tire and TireRack have merged so they're basically the same now, and I get a small discount ordering local. Knowing this information now, I would say something but I think these N0 will fit a lot better. Will find out when I get back from a trip how they ride / fit.

Originally Posted by FISH22

These are the ones I have, N0 Porsche. Happy with how they fit. Like you mentioned, they're a more square fit. Nice bulgy/meaty look. Love it.

Good to hear! I like the way yours look. The ones I had on the car have a stretched look to them, even though they protect the wheel but about a 1/2 inch.

Here's a comparison to show what I mean. Front is square (OEM), rear is "stretched" - I believe the surface area that touches the road is actually smaller / narrower than the P0 ones.