[aldksgo]

Originally Posted by JasonSlyh

I finally got the wheel specs from Jason — 20x9.5 ET23. Color will be dark gunmetal, he haven’t changed it in the rendering. I suppose it’s not much different from ET25, but Jason mentioned ET23 should sit a bit more flush with the fender, since ET25 still leaves a small gap.

Also, has anyone looked into the potential downsides of increasing track width, like extra wheel bearing wear, additional stress on suspension arms, or increased load on the axle shafts? Or are these changes actually pretty minor and nothing to worry about in real-world driving?

Looks good. I’m still deciding on 20x10 and if 25 is the play or 22/23 🧐

[JasonSlyh]

Originally Posted by aldksgo

Looks good. I’m still deciding on 20x10 and if 25 is the play or 22/23 🧐

Someone in this forum measured remaining spacing between wheel and suspension rod. 20x10 ET25 only leaves 2 to 3 mm…personally I feel it’s too risky. 10J ET 22/23 will push wheel outside the fender…so I finally chose 9.5J. But it’s your call. If you can accept that spacing, go for it. 10J looks better!!

[aldksgo]

Originally Posted by JasonSlyh

Someone in this forum measured remaining spacing between wheel and suspension rod. 20x10 ET25 only leaves 2 to 3 mm…personally I feel it’s too risky. 10J ET 22/23 will push wheel outside the fender…so I finally chose 9.5J. But it’s your call. If you can accept that spacing, go for it. 10J looks better!!

Yeah I was leaning towards the 20x10 +25 but I’m thinking all over again lol. Staying stock height on wife’s car like 99% so.. decisions over the winter I guess.

Any others on 20x9.5 20x10 wanna post some pics to help my decision? 🤣

[OhThatGuyJax]

The wait on these things is excruciating. The customs clearance was completed on October 26th, and they say to expect shipping information on the FedEx website the day after tomorrow. It’s like watching paint dry.

FedEx finally has the wheels so here’s how the timing played out, for anybody thinking of ordering from BKU:



11/4 update. FedEx finally delivers.

[JasonSlyh]

Originally Posted by Steelers6891

Just received my rendered drawings of my wheels. I felt they looked darker than OEM but he said the OEM finish has a “transparent gray” I’m assuming it’s like gunmetal. Besides them being on a holiday Jason has been very responsive

It seems your CB was also changed to 66.45mm. Have you received it and installed it? Did you have any issue about CB size when you install it?

[Steelers6891]

Originally Posted by JasonSlyh

It seems your CB was also changed to 66.45mm. Have you received it and installed it? Did you have any issue about CB size when you install it?

I have not received my wheels yet. I just got an updated video from the manufacturer of them finishing being milled and ready for paint. As for the CB I have no idea honestly it was never talked about. I’m hoping it’s the correct size they did ask what year and model my car was before I ordered them

[JasonSlyh]

Originally Posted by Steelers6891

I have not received my wheels yet. I just got an updated video from the manufacturer of them finishing being milled and ready for paint. As for the CB I have no idea honestly it was never talked about. I’m hoping it’s the correct size they did ask what year and model my car was before I ordered them

Jason told me they tested and found that 66.45 mm fits better because there’s some manufacturing tolerance on every car. He said some customers who ordered 66.6 mm center bores before reported that the wheels felt a bit loose, so now they only make 66.45 mm.

Honestly, I’m a bit skeptical about that explanation — 0.15 mm seems like quite a large tolerance for BMW hubs. From what I saw in the earlier posts, the first batch of people who bought wheels from him were all using 66.6 mm, and no one mentioned any looseness issues. In fact, I’m more worried that 66.45 mm might end up being too tight to fit properly…

[Steelers6891]

Originally Posted by JasonSlyh

Jason told me they tested and found that 66.45 mm fits better because there’s some manufacturing tolerance on every car. He said some customers who ordered 66.6 mm center bores before reported that the wheels felt a bit loose, so now they only make 66.45 mm.

Honestly, I’m a bit skeptical about that explanation — 0.15 mm seems like quite a large tolerance for BMW hubs. From what I saw in the earlier posts, the first batch of people who bought wheels from him were all using 66.6 mm, and no one mentioned any looseness issues. In fact, I’m more worried that 66.45 mm might end up being too tight to fit properly…

Interesting. I also messaged him expressing my concerns. I guess it’s on them to make it right if the rims don’t fit correctly. Makes me feel a little better bit better that they have fixed their errors with past customers.

[deviation01]

This coming from apex wheels 66.6 for our cars. 66.45 not mentioned at all. A bit concerning but no one from the original batch has had fitment issues. I am yet to install mine so we will see.

https://apexwheels.com/blog/technica...D-SitQzdoBL96l

[JasonSlyh]

Originally Posted by deviation01

This coming from apex wheels 66.6 for our cars. 66.45 not mentioned at all. A bit concerning but no one from the original batch has had fitment issues. I am yet to install mine so we will see.

https://apexwheels.com/blog/technical-discussion/the-ultimate-bmw-bolt-pattern-and-centerbore-guide?srsltid=AfmBOorGs8QN-oKdXQYz0GPUDsRKBb7qBJtxqOodEeD-SitQzdoBL96l

Thank you for confirming. Are you going to install it recently? I may want to ask him to stop production for now. That 66.45 vs 66.6 is really confusing me…I did lots of research, never saw any person used 66.45

[Gritty]

The wheels I bought fit perfectly with the standard bore. I have 3K miles on them and they roll great, no complaints at all.
There’s documentation of 100’s of new wheels going on X3 and X3M cars over the years without issue.
Some guy on WhatsApp says BMW and all the other wheel manufacturers had the bore wrong…really?

[deviation01]

Originally Posted by JasonSlyh

Thank you for confirming. Are you going to install it recently? I may want to ask him to stop production for now. That 66.45 vs 66.6 is really confusing me…I did lots of research, never saw any person used 66.45

Trust me I want to but don’t have the budget for that right now. Weddings consume a lot of resources 😂

[JasonSlyh]

Okay, I found a very interesting post — someone on the G30 forum had vibration issues at high speed, and it turned out the problem was due to excessive clearance between the hub spigot and the wheel center bore.

On page 13 of that thread, a member measured his car’s hub with a caliper and found it to be 66.5 mm, while the wheel’s center bore was around 66.75 mm. This 0.25 mm gap caused noticeable vibration, forcing the owner to use hub damping tape and friction disc to fix it.

So Jason’s point about using 66.45 mm isn’t completely unreasonable — BMW hubs do seem to have a bit of manufacturing tolerance. However, whether 66.45 mm is too tight remains to be seen. I might take the wheels off and measure my own hub to confirm.
For now, I still lean toward 66.6 mm being the correct and safest center bore size.

https://g30.bimmerpost.com/forums/sh...512720&page=13

[Steelers6891]

This is right from Jason

“66.45 is a better fit. Don't worry, if there are any installation problems with the wheel, I will be responsible.”

He also sent pictures of my rims being complete and ready to be shipped. At this point I’m going to just take his word for it and hope he honors his products like he says or I’ll escalate it to Alibaba if the don’t fit correctly. Also for this exact reason I specifically used my AMEX card worst case scenario I’ll dispute the charge. They have amazing customer service

[deviation01]

Keep us updated when you get the wheels and how the fitment goes

It took some persuasion from my side two get 2 out of my 4 wheels replaced due to plant imperfections so it does take a bit of time.

[newbimmerguy]

Originally Posted by Steelers6891

This is right from Jason

“66.45 is a better fit. Don't worry, if there are any installation problems with the wheel, I will be responsible.”

He also sent pictures of my rims being complete and ready to be shipped. At this point I’m going to just take his word for it and hope he honors his products like he says or I’ll escalate it to Alibaba if the don’t fit correctly. Also for this exact reason I specifically used my AMEX card worst case scenario I’ll dispute the charge. They have amazing customer service

Wow those 892 style wheels look GREAT.

Sad I missed this but interested to see how this pans out for everyone.

Going back to the 2nd page of this monster thread, I used to be an ISO auditor (but for their Security Standard ISO 27001 vs. ISO 9001 the Quality Management standard, but most of the ISO certifications are shockingly similar and my instructor in the certification was a former ISO 9001 auditor and was constantly comparing and contrasting between the two), and everyone really should take a manufacturer's ISO Certification with a lot of "salt".

There are many ways for companies to "game" the system, like setting the scope of your certification to the Janitor's closet in Tulsa, OK instead of the company as a whole or the company's manufacturing processes, but it's important to understand that the certification is focused on PROCESSES and DOCUMENTATION that the company has that are focused on quality and not the actual quality of the product that consumers will necessarily care about.

A company can say that if their wheel manufacturing tolerances are +/- 20 mm in any dimension, then as long as they can show that they have the process in place to ensure that happens, they'll still pass an ISO 9001 audit and get the certificate to hang it up on the wall. (The certification doesn't mandate the specs that a company sets, which obviously drive the actual quality of the product to the consumer; it just focuses on the quality processes and documentation and "executive buy-in" to ensure that they hit whatever their target is.)


Adam

[richiro]

Originally Posted by Steelers6891

Interesting. I also messaged him expressing my concerns. I guess it’s on them to make it right if the rims don’t fit correctly. Makes me feel a little better bit better that they have fixed their errors with past customers.

To be honest my renderings showed a 66.6 CB. So that is quite strange indeed.

Also to clarify, they never made anything right on my end with the paint and other specs being wrong.

I’d likely not repurchase another set from them as it was a lot of back n forth and more than I had planned on having to deal with.

There are other brands out there that are as good if not better, but again for what I paid and what I’m using them for, no complaints.

[Steelers6891]

Originally Posted by richiro

To be honest my renderings showed a 66.6 CB. So that is quite strange indeed.

Also to clarify, they never made anything right on my end with the paint and other specs being wrong.

I’d likely not repurchase another set from them as it was a lot of back n forth and more than I had planned on having to deal with.

There are other brands out there that are as good if not better, but again for what I paid and what I’m using them for, no complaints.

I guess I’ll just have to take his word and have to wait and see he said they should be delivered in a month from now.

[aldksgo]

Originally Posted by Steelers6891

This is right from Jason

“66.45 is a better fit. Don't worry, if there are any installation problems with the wheel, I will be responsible.”

He also sent pictures of my rims being complete and ready to be shipped. At this point I’m going to just take his word for it and hope he honors his products like he says or I’ll escalate it to Alibaba if the don’t fit correctly. Also for this exact reason I specifically used my AMEX card worst case scenario I’ll dispute the charge. They have amazing customer service

What exact finish is this?

[Steelers6891]

Originally Posted by aldksgo

What exact finish is this?

OEM finish

[D335NUTZ]

Depending on where you look it's either 66.5 or 66.6 measurement for the hub. Never heard 66.45 before.

[Steelers6891]

Originally Posted by D335NUTZ

Depending on where you look it's either 66.5 or 66.6 measurement for the hub. Never heard 66.45 before.

This is gonna be interesting lol