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Discussion Starter · #1 ·
Hi all, a first time EV car owner here and decided to go with the iX40 as that was the only model available here in my country.

Right after I collected the car, I couldn't stand the look of the stock wheels although it came with the 22' option.

So after I dropped the car off my go to guy for windows tint, ceramic coating and PPF, I called my tire guy and after a short discussion I decided to go with the HRE FF10 wheels in liquid metal and 285/40/22 Michelin Pilot Sport SUV tires.

Never been happier! It is the perfect daily drive for urban commuting. As a matter of fact, I liked the car so much I placed an order for another M60 because the iX40 speed limit was set at 200 km/h so this iX40 will go to my wife then the M60 arrives.

Wheel Automotive tire Hubcap Alloy wheel Bicycle part

Tire Wheel Car Vehicle Hood

Wheel Tire Vehicle Car Automotive side marker light
 

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What is the load rating of the HRE wheels? I'm surprised that the HRE FF wheels are strong enough (read: correctly load rated) for the ~5700 LBS of the iX. Maybe the 40 is lighter though?
 

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Hi all, a first time EV car owner here and decided to go with the iX40 as that was the only model available here in my country.

Right after I collected the car, I couldn't stand the look of the stock wheels although it came with the 22' option.

So after I dropped the car off my go to guy for windows tint, ceramic coating and PPF, I called my tire guy and after a short discussion I decided to go with the HRE FF10 wheels in liquid metal and 285/40/22 Michelin Pilot Sport SUV tires.

Never been happier! It is the perfect daily drive for urban commuting. As a matter of fact, I liked the car so much I placed an order for another M60 because the iX40 speed limit was set at 200 km/h so this iX40 will go to my wife then the M60 arrives.

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I'm a huge wheels guy...and those are awesome! Might think about something like that for my iX50...Thanks.
 

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Discussion Starter · #5 ·
What is the load rating of the HRE wheels? I'm surprised that the HRE FF wheels are strong enough (read: correctly load rated) for the ~5700 LBS of the iX. Maybe the 40 is lighter though?
The HRE FF10 when released by HRE they officially list down the BMW X5 G05 as one of the supported vehicle. The heaviest G05 X5 variant is the xDrive 45e at 2530 kg / 5578 lbs.

My current iX40 is 2440 kg / 5379 lbs, hence I decided to go with it.

The weight for the iX50 is 2585 Kg / 5699 lbs with the bigger battery, but I presume the wheels should fit as well as it is only 50 kg heavier than the xDrive 45e.

I tried looking up for the actual load rating for HRE FF10 wheels at their website and I found none, I called my tire guy up and he told me the max load rating for the FF10 wheels is 7400 lbs from the spec sheet that was thrown away after the wheels was fitted.

I asked him to double confirm that figure if possible and he said he will revert the soonest he can confirm via the distributor here in my country.
 

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Discussion Starter · #6 ·
Great looking wheels! What is the spec on the rims?
I went with liquid metal.

I tried looking up for the actual load rating for HRE FF10 wheels at their website and I found none, I called my tire guy up and he told me the max load rating for the FF10 wheels is 7400 lbs from the spec sheet that was thrown away after the wheels was fitted.

I asked him to double confirm that figure if possible and he said he will revert the soonest he can confirm via the distributor here in my country.
 

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I asked him to double confirm that figure if possible and he said he will revert the soonest he can confirm via the distributor here in my country.
GREAT data —- let us know if he reconfirms. I’m not a huge fan of the OE 21” wheels my vehicle has — and would love to get some FF wheels like these. I think this style really matches nicely and I’d prob also go liquid silver, though they have other colors that might work nicely on my Blue Ridge — anyhow, your iX looks gorgeous, congrats and enjoy in good health!
 

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Discussion Starter · #8 ·
I wrote to HRE inquiring about the load ratings and they responded 900 kg.

I presume what he meant by that is 900 kg per wheel right?

If that is correct, then I guess the figures shared by my tire guy was a little bit low at 7400 lbs but still that is good.
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Doing a quick Google search, I found this:
Gross Vehicle Weight (GVWR), 3145 kg. Max

Normally yes, you can divide that by 4 to get the corner max, however it isn’t always that simple. Since most vehicles have cargo in the rear, often times the max load for the rear axle is/can be more. Let’s just round up to 7,000 LBS to be safe, so that is 1,750 LBS per corner.

Tire Rack lists the OE 21” Goodyear tires on my ‘23 iX at:
Load Index 109= 2,271 lbs (1,030 kg) per tire

So now does that 130 kg per corner matter? Are the tires “over rated” or are the wheels under rated? Again from the factory it’s only 786kg/corner if you take that 3145 and divide by four. Actually let’s consult the owners manual …

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Okay this works… and does give is -good- info. At the max load rating would be, as I had guessed, the REAR axle, which is a combined (both sides) of 1,770 kg — 885 kg max. So BMW has chosen tires that exceed that load, but may be simply because the width tires they wanted are more capable than needed. But either way, if the max load in the rear is 885 kg per side, then your 900-kg-rated wheels should be just fine. That is what I am deducing there—

What is interesting to note here is that you got a reply for the rating for the 22” FF wheels from HRE. I wonder if the appropriate 20/21” sizes are equally as robust or not. I may have to ask HRE down the road if I decide to upgrade wheels. But again the bottom line for now is that based on how i undersatnd load ratings, I’d say you are a-okay to keep on truckin’ hahahaha enjoy!!! (y)
 
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