Sorry for the delay. After the latest test, I’m actually seeing a range increase of about 4-8% when compared to the road tires, which is mostly driving in a mix of AP, Conserve and Snow modes, mostly city/town driving.
There may be some room error in these numbers. I'll be able to share more accurate data soon, now that the truck's software has been updated to reflect the change in wheel size. Stay tuned
I used to have the 21's, and tried the center caps directly and they did not work on the 20" AT's.
Attachment link seems broken
Calling rivian service again, they mentioned they will give me a call back. I'll update this thread on how that goes.
So I just purchased these from Rivian and apparently they do not come with center caps. I spoke to two different service advisors and they both told me the same thing, unfortunate.
I've bought a few aftermarket center caps on Amazon - 63mm, 62mm, 59mm and none have worked.
That said, has...
So far, I'm seeing a roughly ~6% reduction in range (compared to 21" road tires, my previous set) on average. This includes mixed highway and city driving in AP mode.
However, I just had Rivian service come out and perform a software update which may change the wheel settings in-car and range...
briefly considered AT tires. Decided against since I only off-road on random/spontaneous occasion and did not want to sac the range, so decided to go for AS tires instead.
i believe a reflash is needed for range calc/speedo. tpms works fine (so far) so long as you swap from the old wheels or...