458 wheels on F12

Hello everyone,

Would it be possible to use my aftermarket 458 21" wheels on my F12?

There are the wheels I currently have under my 458, but like to try them on my F12:

wheelsandmore

 

If the offset is correct - yes. I'd suggest you contact HRE and ask what offset they recommend for the F12 so you can compare that to your wheels. PCD and hub bore is the same on both cars.

 

Thanks.

Even though the wheels are a bit less wide then the original OEM wheels of the F12?

 

Don't you have an insurance issue if you use wheels that were not made for the car / approved for the car?

 

Not sure what the OE 458 wheels have to do with this. The OE 458 and F12 rims are 20" but both front and rear rims for the 458 are as you say narrower than the F12 rims. That being said, you can actually mount the F12 spec tyres on OE 458 wheels as the front F12 tyres are rated for use on 8.5" wide rims and the rears are rated for 10.5" wide rims. The offset of the OE 458 rears are more aggressive than those of the F12, but seeing that you can mount spacers on the rear of an F12, they should fit fine.

As for which tyres fits your 21" aftermarket wheels depends on their specifications. What's the width and offset of your 21" wheels and which tyres are on them now?
A 21" set of tyres that will work very well on the F12 if your rim offsets and width allow this, would be these - especially as you get to use the MPSS tyres.

265/30R21 and 325/30R21

If you for some reason prefer the PZero you can use this size.

255/30R21 and 325/30R21

But unless you post some rim specifications, it's virtually impossible to say what will work.

 

Depends on the country and/or region. Some countries here in the EU will want a TÜV or CE certified wheel on the car. The US will want a DOT certification. If the load approval of the wheel is more than what the car calls for, there should not be an issue.

Often TÜV or DOT certifications do not specify a make and model of car, but rather a load rating. Also, if an accident happens and the wheels are not part of what caused the accident, there's little to no chance that an insurance company would be able to hold the driver liable due to the wheels not being approved. It will be a court matter most likely costing money and time, but I doubt it would end up in the favour of the insurance company. If you have an accident on a non-certified wheel like the Challenge wheels for the 360, and the cause can be linked to the wheels malfunctioning . you're **** out of luck.

 

Thanks for the elaborate answer DK308.

My specs are 245/30zr21 front and 345/25zr21 back.
Tyres are from Hankook.

 

If the wheels are narrower than OEM, do not put them on an F12. Affects handling (especially understeer/oversteer balance), braking, etc. Here is my list of OEM wheel sizes and offsets for the 5 x114.3 mm (4.5") wheels. In general, most of the late wheels are close enough in offsets to interchange, possibly needing spacers, providing they are at least as wide as what was originally fitted.

This data came from multiple sources, mostly from pros reading the castings on the wheels and from looking in owners manuals.

Ferrari OEM Wheel Sizes


5 X 114.3 mm Bolt Pattern

612

Five Spoke F 18”, R 19”, 5 X 114.3 mm
Front 8J X 18 ET 43.5 mm , R 10J X 19 ET 51.1 mm
Five Spoke Modulars 19”, 5 X 114.3 mm
Front 8J X 19 ET 43.5 mm, Rear 10J X 19 ET 51.1 mm
Challenge Monolithic 20”, 5 X 114.3 mm
Front 8J X 20 ET 43.5 mm, Rear 10J X 20 ET 51.1 mm

599/HGTE/SA Aperta

Five Spoke F 19”, R 20”, 5 X 114.3 mm
Front 8J X 19 ET 43.5 mm, Rear 11J X 20 ET 63.8 mm
Challenge Monolithic 20”, 5 X 114.3 mm
Front 8J X 20 ET 43.5 mm, Rear 11J X 20 ET 63.8 mm
HGTE/SA Aperta Five Spoke 20”, 5 X 114.3 mm
Front 8.5J X 20 ET 40 mm, Rear 11J X 20 ET 63.8 mm

599 GTO

Five V/Ten Spoke 20”, 5 X 114.3 mm
Front 9.5J x 20” ET 38 mm, Rear 11.5J x 20” ET 63 mm

California/California T

Pentagram Forged, 5 Spoke 19”, 5 X 114.3 mm.
Front 8J X 19 ET 44 mm, Rear 10J X 19 ET 52.5 mm
V Spoke Forged, 5 Spoke 20”, 5 X 114.3 mm
Front 8J X 20 ET 44 mm, Rear 10J X 20 ET 52.5 mm

458

Five/Ten Spoke 20”, 5 X 114.3 mm
Front 8.5J X 20 ET 46.5mm, Rear 10.5J X 20 ET 58.5 mm

458 Speciale/Aperta

Five Spoke 20”, 5 X 114.3 mm
Front 9J X 20 ET 44.7 mm, Rear 11J X 20 ET 48.4 mm

FF

Five Spoke 20”, 5 X 114.3 mm
Front 8.5J X 20 ET 46.5, Rear 10.5J X 20 ET 53.4 mm

F12

Five/Ten Spoke 20”, 5 X 114.3 mm
Front 9.5J X 20 ET 48.4 mm, Rear 11.5J X 20 ET 71.6 mm

F12 TDF

Ten Spoke 20”, 5 X 114.3 mm
Front 10J X 20 ET TBD, Rear 11.5J X 20 ET 71.6 mm

488

Five/Ten Spoke 20”, 5 X 114.3 mm
Front 9J X 20 ET 44.7, Rear 11J X 20 ET 48.4

 

What are your rim specs? Those are the most important.

 

Terry are you talking about changing rim width or tyre width? Changing the latter I agree can have a significant negative impact. But putting 458 wheels on an F12 I can't imagine doing very much if you stick with OE tyres.

 

I am talking about wheel width, which will have a very large affect on handling. Putting oversize tires on narrow wheels is even worse since it can lead to tread instability. Unless, of course, the wheel width is within the tire manufacturer's specifications. Even then, handling will be affected, especially balance.

General rule of thumb: Never put on wheels with a narrower width than what was fitted OEM.

So the big question on the 21" 458 wheels is: What are the widths of the wheels? If they are not at least 9.5" wide in front and 11.5" wide in the rear, I would not use them. Especially not with 730 hp on tap.

 

Not sure where there's a problem with "undersized wheels". The F12 fronts are rated to work with 8.5 to 10" wide rims and the rears are rated for rims 10.5" to 12.5".

There's no doubt that rim width changes some things. But interestingly a wider rim can make the car overly twichy, as it stiffens up the sidewall.

I'm definitely against using too wide or too narrow rims for a specific tyre section width. I've seen tyres "roll" off beads which leads to instant air loss.

But what's also worth noting here, is that the difference in tyre width and tyre profile has more to say in terms of handling than whether front rims are 9" or 9.5" wide. I mean we're now talking about tyres that are also no longer developed for the car and at best, the front to rear width bias can be considered somewhat close to OE if the tyres are 265 and 325. But I doubt that a rim that is well within what the tyre calls for is a huge problem.

Just my 2c.

 

wheel width is 9,0 x 21 on front and 12,5x21 on back.

 

Probably close enough. Might push her a bit more towards understeer, but 1/2" narrower up front is not that big a deal as long as the front to rear diameter differential of the tires does not change from OEM more than about 4-5%. More than that and you can get into ABS/stability control issues.

Are the wheels really that much better looking than the OEM F12 wheels?

 

Here is a pic of the wheels on my 458.
Custom made and color matched to Giallo Modena.
Image Unavailable, Please Login

 

With the tyres you got on now, they will most likely not work on the F12. The rears are a lot smaller in diameter than the OE F12 tyres. The OE F12 front to rear bias is 6,5% and what you have on your 21" wheels is about 4,5%.

Also note that the 345/25R21 rears are only 27.9" in diameter and the F12 tyres are 28.7". That will leave a huge gap between the arch and tyre + the car will sit in a "reverse wedge" stance as the car will sit about 10 mm lower in the rear.

As for tyres. 325/30R21 will not fit 12.5" wide rims as they are rated for 12" wide rims max. No company currently makes a suitable 335/30R21 tyre, so in essence, your current rims and wheel package is a poor fit for the F12.

If I was you and I wanted aftermarket 21" wheels on my F12, I'd spend the money and get something that fit and look right. That would be 9.5" wide fronts and 12" wide rears mounted up with MPSS 265/30R21 and 325/30R21 tyres.

 

Thanks DK, this made me order the Novitec set!

 

You're welcome and congrats on your new wheels.

I take it it's the 21/22 combo you've ordered?

 

Yes sir!
I needed a 'reason' to convince myself to get these well, so my conscience is now at ease.
I'll post some pics when the car is complete as I'm getting an interior upgrade as well.