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Wheels | Tires | Spacers | Hub -- Sponsored by The Tire Rack Specific topics relating to wheels and tires.


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Old 09-06-2021, 06:41 PM   #29
949 Racing
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Originally Posted by BlkTrax View Post
+1 Sanger

+2 for 17x9+42

+3 if in Rally Gold and Clears AP Racing Competition Sprint Brake Kit

+4 if lighter than the 17.8 lb MachV Awesome I plan to buy when the 2022 I ordered shows up.
If we build a 17x9 Sanger, it will be a VIA certified 830KG load rated wheel so it won't be as light as the non- JWL/VIA certified Mach V mystery wheel. The Mach V appears to be gravity cast-flow form, which may also be how we make the Sanger. Defacto industry standard (JWL/SAE) load rating for a 17" 5x100 is 690kg by the way.
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Old 09-07-2021, 12:31 AM   #30
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If we build a 17x9 Sanger, it will be a VIA certified 830KG load rated wheel so it won't be as light as the non- JWL/VIA certified Mach V mystery wheel. The Mach V appears to be gravity cast-flow form, which may also be how we make the Sanger. Defacto industry standard (JWL/SAE) load rating for a 17" 5x100 is 690kg by the way.

Out of interest is 690kg as high (or higher) than the factory wheels? Thanks.
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Old 09-07-2021, 11:46 AM   #31
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Out of interest is 690kg as high (or higher) than the factory wheels? Thanks.
OEM wheels are JWL 690kg. It will be right on the wheel so you can take it off and look for the info.

It's important to note that most OEM wheels for cars sold in multiple markets will also have TUV (Germany) certification. TUV standards are the highest in the world, higher than JWL (Japan) & SAE (USA). TUV wheels are heavy! For this reason an OEM 690KG rated wheel will often be capable of handling much higher load than 690kg. Aftermarket wheels not sold in Germany will not have the TUV rating so they're built much lighter.

This can be a complex subject so we wrote an article to help make sense of it: http://949racing.com/how-strong-is-your-wheel.aspx
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Old 09-07-2021, 05:38 PM   #32
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Thanks heaps mate, really appreciate the detailed response.
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Old 09-07-2022, 04:00 AM   #33
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Hello,
Any news on the new wheels? 😁
Thank you,
Andrei
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Old 09-11-2022, 02:05 PM   #34
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Hello,
Any news on the new wheels? 😁
Thank you,
Andrei
In progress. Doing a lot of lab testing of sample wheels right now. Fine tuning things. No ETA for production wheels yet.
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Old 11-11-2023, 04:31 AM   #35
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Any updates a year later?
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Old 11-13-2023, 01:59 PM   #36
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Any updates a year later?
Haven't posted here because the first batches are 15 and 17" 4 lug. We started taking orders for those a while ago and they're due here in the next month or so. 17 & 18" 5 lug next!

Here are some of the 4 lug wheels in production now.

17" 6UL


17" 6UL


15" 6UL


15x9 Coto (design study)
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Old 11-15-2023, 05:38 PM   #37
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I remember reading somewhere that the 6UL design was inspired by some 7-split spoke Lotus wheels? Is 6UL lighter than 7UL or are there any other beneficial factors when it comes to spoke design?
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Old 11-15-2023, 06:07 PM   #38
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I remember reading somewhere that the 6UL design was inspired by some 7-split spoke Lotus wheels? Is 6UL lighter than 7UL or are there any other beneficial factors when it comes to spoke design?
Not the case. I wonder where that came from. The basic pattern came from a prototype 16" centerlock wheel for a Radical SR8. We used the pattern, changed the spoke profile, added a draft to the spoke cross section, added a lug well to stiffen the wheel, eliminated the stepped lip and a made a few other changes to come up with the original 6UL design.

Overall 10-12 spokes is the sweet post for load dispersion. We chose 12 because of the symmetry although it makes it harder to match up with 4 and 5 lug bolt patterns. Without getting too deep into the weeds on design, we spend many hours on each fitment reviewing stress concentrations to improve fatigue life and stiffness. Tiny changes to a radius or fillet can have profound effects on ultimate strength.

From 2006

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Old 11-19-2023, 10:50 PM   #39
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Load distribution aside, looks are imho better for wheels of less spokes, like 5-6. I guess, it might be the reason, why many more spoke wheels do some design unification of spokes in pairs or split spoke designs
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