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jemkewl

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There are no rules on which units of measure must be used to communicate offset. It depends on the market or the manufacturer's prerogative—between metric and imperial. And even if units are not indicated in writing, it's pretty easy to tell which system you are looking at. For instance, since offset is measured either outboard (positive offset) or inboard (negative offset) from the center plane of the wheel barrel... it's highly unlikely for a wheel to have 48" of offset; even for a jumbo jet's landing gear.

20" x 9" vs 20" x 8.5"... 20" is wheel diameter. The other number is width of the wheel barrel. All tires have a range of recommended barrel width. And when comparing wheels, the offset (or plane at which the wheel is mounted to the car) is your fixed common reference point. Line this plane up to see where the inboard and outboard rims end up as offset changes.

AW01
20x8.5"
+45

AW09
20x8.5"
+48

Because AW01 has 3mm less positive offset, that means the distance from edge of the outboard rim to mounting surface of wheel is 3 mm more than that of AW09. This means the AW01 would poke out 3 mm more than AW09. If both wheels were shod with same brand/model/size tire and inflated equally, the tire on the AW01 would theoretically poke out as much... 3mm. 25.4mm = 1". 3mm equates to 0.11811" (i.e. hardly perceptible).

Cliff notes: Less positive offset means more poke. More negative offset means more poke. This gets a little more complicated when you vary barrel width at the same time, but it's not difficult. Sketching simple diagrams help with visualization. Or, just use this online offset calculator.

Screenshot 2023-12-07 at 3.07.15 PM.png
Thanks. I meant AW10 not 01 - which would make AW10 VS AW09 as 20x9 + 40 offset VS 20x8.5 + 48 offset respectively. However, I can apply what you shared above accordingly. Guess it is just a design tradeoff for weight, milling, etc.
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UnsungZero_OldTimeAdMan

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Thanks. I meant AW10 not 01 - which would make AW10 VS AW09 as 20x9 + 40 offset VS 20x8.5 + 48 offset respectively. However, I can apply what you shared above accordingly. Guess it is just a design tradeoff for weight, milling, etc.
Attached is what the online offset calculator returns between those two. As you can see, the outboard side pokes 14 mm. That is almost half an inch. To each his own, but I personally would not choose a 9" wide wheel. I intend to go off-road. Without changing tire to a wider size, there will be less bulging of the tire sidewall to protect the wheel rim. And if I run a wider tire, I sacrifice range and efficiency whenever I am on pavement (majority of my R1T's operational life). If you don't go off-road and just want to look more burly, then there are no downsides except for cost.


Screenshot 2023-12-07 at 5.02.56 PM.png
 
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Atomic Wheels

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[AW09] is going through manufacturing. Here is a short video :)

Only a few hours left for the Christmas sale and you still have a chance to pre-order with a 10% discount.

More details at www.atomic-wheels.com

Please let us know if you have any questions!
214.225.8585
[email protected]

 

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Update on the AW09?
 
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The batch is arriving this week. Delivery starts as early as next week.

We still have available sets in the following colors:

Gloss Black
Satin Bronze
Titan

14% discount until 2/19/24. Still a pre-order-based purchase. $100 fully refundable deposit if you decide not to proceed until the set is ready for shipping.

Please let us know if you have any questions:
214.225.8585
[email protected]
 

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LL75

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The batch is arriving this week. Delivery starts as early as next week.

We still have available sets in the following colors:

Gloss Black
Satin Bronze
Titan

14% discount until 2/19/24. Still a pre-order-based purchase. $100 fully refundable deposit if you decide not to proceed until the set is ready for shipping.

Please let us know if you have any questions:
214.225.8585
[email protected]
Ordered !
 
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Atomic Wheels

Atomic Wheels

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The batch is arriving this week. Delivery starts as early as next week.

We still have available sets in the following colors:

Gloss Black
Satin Bronze
Titan

14% discount until 2/19/24. Still a pre-order-based purchase. $100 fully refundable deposit if you decide not to proceed until the set is ready for shipping.

Please let us know if you have any questions:
214.225.8585
[email protected]
[AW09] for Rivian in Gloss Black is here.

Only the last set (4 rims) left that is not pre-ordered.

Still processing them and will start deliveries soon.

IMG_7121.JPG
 
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Atomic Wheels

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[AW09] in Gloss Black is sold out!

Other colors are still available. Stock is limited.

We are accepting pre-orders with a lead time of up to 10 weeks.

Please let us know if you have any questions:
214.225.8585
[email protected]
 
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LL75

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[AW09] in Gloss Black is sold out!

Other colors are still available. Stock is limited.

We are accepting pre-orders with a lead time of up to 10 weeks.

Please let us know if you have any questions:
214.225.8585
[email protected]
Just had this installed paired with general grabber hts60 275/60/20 LX.

Will post efficiency once I drive it a little more

IMG_3194.jpeg


IMG_3193.jpeg
 
 




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