Rotor Replica Wheels

[v36sedan]

Anyone running either of these?

https://www.oewheelsllc.com/AU29-19085-gunmetal-machined-wheels-set-fits-Audi-A-Series

https://www.usarim.com/19-inch-audi-wheels/aud-325-19-gmt/

[KRp220]

Anyone running either of these?

https://www.oewheelsllc.com/AU29-190...-Audi-A-Series

https://www.usarim.com/19-inch-audi-...ud-325-19-gmt/

i run a rotor rep for my winter setup but went with Alzors. check these out: https://www.ecstuning.com/b-alzor-pa...-four/628-9kt/
most people find them to be fine from the reviews i've seen, and i certainly dont have any issues with them

[v36sedan]

The photos I’ve seen of the Alzors look very light in color compared to OEM and lack the concave aspect. Are yours 19s? If so post a picture.

Thanks

[jsilas]

Why not hit up Hartmann Wheels / Achtuning? They make excellent rotor wheels in a number of sizes.

https://www.hartmannwheels.com

[sacandagaD]

Why not hit up Hartmann Wheels / Achtuning? They make excellent rotor wheels in a number of sizes.

https://www.hartmannwheels.com

+1 to this. Been running a set for 5 years, and had great luck with them. Not cheap replicas, and the quality is at least as good as OEM.

[SteveYem]

The photos I’ve seen of the Alzors look very light in color compared to OEM and lack the concave aspect. Are yours 19s? If so post a picture.

Thanks

Why not hit up Hartmann Wheels / Achtuning? They make excellent rotor wheels in a number of sizes.

https://www.hartmannwheels.com

Conversely, it always appears to me that the Hartmann version is darker in color than the OEM version, so keep that in mind based on the look you're going for.
EDIT: Another difference I've noticed with Hartmann (and some other replicas) vs. OEM is that the OEM version has a constant smooth radius going from the wheel face into the inner barrel, whereas the Hartmann and other replicas have a sort of "corner" where the face of the gray area of the wheel starts out roughly parallel with the machined surface at its outermost point, then there is a well defined crease/corner where it turns back toward the inner barrel.

Hartmann:


OEM:


It's kind of subtle, and in some respects I prefer the Hartmann style as it helps the wheel to look bigger in my opinion.

[tar]

why not get oem? i thought the whole point of oem wheels is they are stronger than cheap ripoffs. hartmanns are fine. others pass

[hilmar2k]

why not get oem? i thought the whole point of oem wheels is they are stronger than cheap ripoffs. hartmanns are fine. others pass

My first guess would be cost.

[rvcahawaii808]

Conversely, it always appears to me that the Hartmann version is darker in color than the OEM version, so keep that in mind based on the look you're going for.
EDIT: Another difference I've noticed with Hartmann (and some other replicas) vs. OEM is that the OEM version has a constant smooth radius going from the wheel face into the inner barrel, whereas the Hartmann and other replicas have a sort of "corner" where the face of the gray area of the wheel starts out roughly parallel with the machined surface at its outermost point, then there is a well defined crease/corner where it turns back toward the inner barrel.

Hartmann:


OEM:


It's kind of subtle, and in some respects I prefer the Hartmann style as it helps the wheel to look bigger in my opinion.

how big of a difference is the concave-ness between the hartman and your oem s5? i honestly might prefer the hartman if they are darker, but if the concave-ness is really less noticeable from the s5's, then it would be a deal breaker for me.

[if6ws9]

I'm interested in that also. The Hartmann's look more concave but that could just be the way the pic was taken.

[A4x]

how big of a difference is the concave-ness between the hartman and your oem s5? i honestly might prefer the hartman if they are darker, but if the concave-ness is really less noticeable from the s5's, then it would be a deal breaker for me.

Big difference and this was the deal breaker for me.

OEM S5 are 19x9 et33.
Hartmann reps are 19x8.5 et 35.

You lose 8mm of concavity which is very noticeable. Nothing beats those OEM S5 19x9 et33 specs! AFAIK there are no replicas with the same width and offset.

[SteveYem]

how big of a difference is the concave-ness between the hartman and your oem s5? i honestly might prefer the hartman if they are darker, but if the concave-ness is really less noticeable from the s5's, then it would be a deal breaker for me.

Sorry, I should have clarified that the "OEM" photo I included in my post was not of one of my S5 wheels. It was a random photo I found online of a set of OEM S4 spec Rotor wheels, just to show the difference in the geometry of the wheel face to barrel transition.

With that said, here are some photos of my S5 spec OEM wheels (19x9 et33) showing the geometry and color, to compare to Hartmann and other replicas:

OEM S5 Rotor 19x9 et33





Hard to tell on the concavity. I don't know whether the Hartmann version is the same concavity as OEM S4 spec 19x8.5 et43 but with a thicker center section to make it a lower offset, or if the wheel center is the same thickness as OEM but shifted farther toward the inside rim so that the spokes have to stretch a farther distance (i.e. more concavity). Maybe the Hartmann version is somewhere in between OEM S4 and S5 spec wheels? If anyone out there with the Hartmann 19x8.5 wheels is willing to take some measurements, I would do the same on my S5 Rotors. I'm thinking to lay a straight edge on two of the machined wedges spanning the center of the wheel, and measuring from the bottom of the straight edge down to the "face" of the center part of the wheel. That distance will allow us to gauge the relative concavity of the two wheels.

[grovlet]

I can tell you OEWheels (one of the OPs original links) is reputable - and decent quality - I've run their Corvette style wheels on my Camaro for years. But I believe they note the Audi Wheels on their site WILL NOT fit the V8s or 3.0T Models.... Specs line up but they must know of something that doesn't work - Brake Fitment maybe?

If price is an issue - Hartmann seems to be the trusted source for Replica Rotors.

[yjypm]

Sorry for being off topic, I have a set of oem s5 rotor wheels with minor scratches for sale. If anyone is interested pm me for pics. I prefer local pickup for $1000 in LA area.

[will13k7]

Love the Hartmann’s, the finish doesn’t hold up to brake dust as well as oem, but you just need to clean them more often and use a wheel cleaner with iron remover.

[MN Blue S4]

Love the Hartmann’s, the finish doesn’t hold up to brake dust as well as oem, but you just need to clean them more often and use a wheel cleaner with iron remover.

Can you measure the offset of your wheels like Steve has suggest in post #12 above? A number of us are curious as to how the concavity of the Hartmann's compares to the S5 rotors.

[will13k7]

They are et38.

[MN Blue S4]

They are et38.

I meant the physical measurement he described in his post (distance from the wheel center cap to a straight edge placed across the outer rim of the wheel).

[will13k7]

I meant the physical measurement he described in his post (distance from the wheel center cap to a straight edge placed across the outer rim of the wheel).

lol, giving me work man. haha. sure, I'll do that, these are not for the concave obsessed though .

[SteveYem]

Can you measure the offset of your wheels like Steve has suggest in post #12 above? A number of us are curious as to how the concavity of the Hartmann's compares to the S5 rotors.

And I'll do the same when I get a chance this coming weekend!

[A4x]

Can you measure the offset of your wheels like Steve has suggest in post #12 above? A number of us are curious as to how the concavity of the Hartmann's compares to the S5 rotors.

That Hartmanns and other reps have significantly less offset than the OEM S5 rotors. Just look at the pics posted above.

Also this:

Big difference and this was the deal breaker for me.

OEM S5 are 19x9 et33.
Hartmann reps are 19x8.5 et 35.

You lose 8mm of concavity which is very noticeable. Nothing beats those OEM S5 19x9 et33 specs! AFAIK there are no replicas with the same width and offset.

[MN Blue S4]

That Hartmanns and other reps have significantly less offset than the OEM S5 rotors. Just look at the pics posted above.

Also this:

Understood but pictures aren't always clear because it depends on the angle the picture is taken at. Width and offset will obviously impact concavity but as Steve pointed out in his post above, it also depends on where the manufacturer locates the center of the wheel in relation to the rim. Wheels made by different manufacturers have noticeably more or less concavity than each other even though both have exactly the same width and offset. The thought behind taking the actual measurement was that would be the purest indication of just how concave each wheel was.

[jran76]

Agree with the above. Offset and concavity are not directly related. Don't assume a lower offset means more concavity. All things being equal, it should, but the design of the wheel/face has a lot more to do with it than the offset in most cases.

[Audi_Andrew19]

Can you measure the offset of your wheels like Steve has suggest in post #12 above? A number of us are curious as to how the concavity of the Hartmann's compares to the S5 rotors.

What’s your brake rotor/pad setup? Looks great.

[A4x]

Understood but pictures aren't always clear because it depends on the angle the picture is taken at. Width and offset will obviously impact concavity but as Steve pointed out in his post above, it also depends on where the manufacturer locates the center of the wheel in relation to the rim. Wheels made by different manufacturers have noticeably more or less concavity than each other even though both have exactly the same width and offset. The thought behind taking the actual measurement was that would be the purest indication of just how concave each wheel was.

Agree with the above. Offset and concavity are not directly related. Don't assume a lower offset means more concavity. All things being equal, it should, but the design of the wheel/face has a lot more to do with it than the offset in most cases.

You guys are right, but it is also pretty clear from pictures that the OEM S5 rotors have more concavity and look better! I was in this same boat a few months ago shopping for wheels. Looked at many many pictures of these rotor styles, and none looked as good or as aggressive as the OEM S5 19x9 et33!

[will13k7]

about 30mm.

[bee_easy1216]

Finishline wheels have a decent price on OEM

https://www.finishlinewheels.com/AUD...14/A-58867U30/


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[SteveYem]

about 30mm.

Measuring the same way on my 19x9 et33 S5 rotors, from machined face to top of center cap, I got right around 45 mm. So, we know that the S5 Rotor spokes have to span ~15mm more than the Hartmann 19x8.5 et38 replicas. Now if someone with OEM S4 spec 19x8.5 et43 wheels could go out and do the same measurement, then we could see how the Hartmann and OEM S4 concavity compares.

[CardFan]

Measuring the same way on my 19x9 et33 S5 rotors, from machined face to top of center cap, I got right around 45 mm. So, we know that the S5 Rotor spokes have to span ~15mm more than the Hartmann 19x8.5 et38 replicas. Now if someone with OEM S4 spec 19x8.5 et43 wheels could go out and do the same measurement, then we could see how the Hartmann and OEM S4 concavity compares.

I just measured my OEM S4 Rotors, it’s about 30 mm.

[SteveYem]

I just measured my OEM S4 Rotors, it’s about 30 mm.

Thanks! So, that must mean the Hartmann replica wheel center is 5mm thicker than the OEM version in order to have 5mm lower offset with similar face concavity.

[Audi-motive]

Good work guys.


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[A4x]

Thanks! So, that must mean the Hartmann replica wheel center is 5mm thicker than the OEM version in order to have 5mm lower offset with similar face concavity.

But the OEM S5 rotors have 15mm more concavity.

[sciprox]

Is there any poke with the S5 Rotors or is negative camber required?

[salwis]

I know this is somewhat old thread, but it helped me a lot, so I want to give my 2 cents. I ordered WSP Italy Rotors 19x9, et33 and concavity is 40mm, thats a little better than OEM S4 rotors, but far from OEM S5 rotors...



- - - Updated - - -

[salwis]

[SlateEd]

More resurrecting an old thread. Does anyone know if the Hartmann 19x8.5 with ET25 offset are actually more concave to get the offset number? anyone with pictures of ET 25 rotors fitted to a B9 S4 or S5?

[ECS Tuning-Audi]

Most cast wheels are going to have the same faces for most offsets, width sometimes causes a difference in face concavity. Once we're back in the office (Ohio stay at home order currently) I'll measure the depth of some faces of the Alzor 628s.

-James

https://www.ecstuning.com/b-alzor-pa...heels-19_inch/

[Ford Prefect]

More resurrecting an old thread. Does anyone know if the Hartmann 19x8.5 with ET25 offset are actually more concave to get the offset number? anyone with pictures of ET 25 rotors fitted to a B9 S4 or S5?

They are slightly more concave than the stock rotors but nothing like the A/S5 rotors. The center of the wheel is thicker and longer bolts are required to install the 628s. I think I have picture comparisons and will look tonight.


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[Ford Prefect]

I don’t have great pics but you see they are pushed out more. IMG_1721.JPGIMG_1722.jpgIMG_1724.jpg


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[SlateEd]

Most cast wheels are going to have the same faces for most offsets, width sometimes causes a difference in face concavity. Once we're back in the office (Ohio stay at home order currently) I'll measure the depth of some faces of the Alzor 628s.

-James

https://www.ecstuning.com/b-alzor-pa...heels-19_inch/

Awesome, thanks! Stay safe for sure... anything you can do to avoid being like us in NY.

They are slightly more concave than the stock rotors but nothing like the A/S5 rotors. The center of the wheel is thicker and longer bolts are required to install the 628s. I think I have picture comparisons and will look tonight.


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I don’t have great pics but you see they are pushed out more. IMG_1721.JPGIMG_1722.jpgIMG_1724.jpg


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Cool - thanks! They do look like they're just about as far out as you would want. These shots are also giving me that nostalgia feeling for my B8 S4... Love the B9 but I miss the manual.