Upgrading to BFGoodrich KO3 All-Terrain Tires on My 22” Rivian Wheels
If you know me, you know I love swapping tires on my Rivians. It’s like putting on a new pair of glasses—same truck, totally different feel.
When I got the Tri-Motor R1T, I went with the 22” Range wheels because they just look so good. With the Aero covers on, they’re sleek and efficient. Pop them off, and you’ve got a more aggressive look. But as nice as they are, the stock Pirelli Scorpion MS Elect all-season tires always felt like something was missing. The R1T is built for adventure, and without All-Terrain tires, it’s not reaching its full potential.
After 7,000 miles, I was ready for an upgrade, but the 275/50R22 size doesn’t have many off-road options. That’s where our RivianTrackr Tire Guide comes in—we’ve done the digging to find the best choices.
I landed on the BFGoodrich All-Terrain T/A KO3 (affiliate link) because it’s a true off-road tire that still works on pavement. Here’s how it stacks up against the stock Pirellis:
| Pirelli Scorpion MS Elect | BFGoodrich KO3 | |
|---|---|---|
| Cost per Tire | $560.16 | $458.99 |
| Size | HL275/50R22 | LT275/50R22 |
| Type | All-Season | All-Terrain |
| Eco Focus | ELECT | None |
| Load Range | HL | E |
| Max Load | 2,760 lbs | 3,000 lbs |
| Load Index | 116 | 119 |
| Speed Rating | H (130 mph) | S (112 mph) |
| Max Inflation | 51 psi | 80 psi |
| UTQG Rating | 500 A A | None |
| Tread Depth | 10/32” | 16/32” |
| Tire Weight | 36 lbs | 61 lbs |
| Tread Width | 7.8” | 10.4” |
| Diameter | 32.9” | 32.9” |
| Revolutions Per Mile | 632 | 633 |
| Manufacturer Warranty | 50,000 miles | 50,000 miles |
| M+S Rated | Yes | Yes |
| 3PMSF Rated | No | Yes |
One thing that stands out is the lower speed rating on the KO3 (112 mph vs. 130 mph on the Pirellis). But here’s the thing—Rivian limits the R1T’s top speed to about 114 mph, so you’re never actually using that extra speed anyway. In other words, it doesn’t matter unless you’re planning to hack the limiter and turn your R1T into a race truck (which, let’s be real, you’re not).
So what are my first impressions? These things are beefy. The KO3s weigh 61 lbs per tire (compared to 36 lbs for the Pirellis), which means they’re more durable but will likely impact efficiency. The tread depth jumps from 10/32” to 16/32”, giving way better grip on dirt, sand, and snow. Plus, they have the 3PMSF rating, meaning they’re actually certified for winter use—unlike the stock tires.
I’ll be testing these KO3s on-road, off-road, and in different conditions over the next few weeks. Keep an eye on RivianTrackr and YouTube for my full thoughts, a detailed review, and range impact.
If you’re thinking about swapping to 22” All-Terrain tires, check out the RivianTrackr Tire Guide to see what’s available. Got questions? Drop a comment—I’m happy to share my experience.
I’ve been rocking the KO3’s for about 4 months now and love them. I have taken my R1S off-roading a number of times and they performed really well in soft sand and large rocks. Seeing there’s not a lot of options either, it’s a great tire… but a bit expensive.
Love the look, but road noise ?