Rivian R1T and R1S: Less Range with All-Terrain Tires, EPA Says

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Rivian R1T and R1S
Rivian R1T and R1S(Credit : MOTORTREND)

The company has been promoting the large figures ever since the Rivian R1T and R1S EVs were announced: 314 miles of range for the truck and 316 miles for the SUV.

The business released an over-the-air (OTA) software upgrade in February of this year, extending the truck’s and SUV’s range to 328 miles each.

However, according to the company’s most recent EPA filings, we now know that those figures only apply to specific powertrain, wheel, and tire combinations. Some pairings receive significantly less range than others, though.

Rivian R1S
Rivian R1S(Credit : MOTORTREND)

The EPA has updated its range and efficiency estimates for the R1T and R1S, and they are much more complex than before due to the production of the eagerly anticipated Dual-Motor powertrain on both vehicles.

Rivian has long claimed that employing half as many motors and producing them internally will result in significant range increases, and they are not mistaken. With the 21-inch wheel option, the EPA now rates the R1T Dual-Motor and R1S Dual-Motor as having a range of up to 352 miles.

Rivian R1T
Rivian R1T(Credit : MOTORTREND)

You’ll see the R1T Quad-Motor and R1S Quad-Motor, which have 328 and 321-mile ranges on the same 21-inch wheels. However, when you scroll, you’ll notice that the range is reduced to 303 miles for the R1T and 307 miles for the R1S with the 22-inch wheels.

When outfitted with the All-Terrain Upgrade package and its 20-inch wheels with specially designed all-terrain tires, the R1T Quad-Motor and R1S Quad-Motor are only expected to go 289 miles and 274 miles, respectively, according to the EPA.

Rivian R1T
Rivian R1T(Credit : MOTORTREND)

This results in losses of 39 miles for the truck and 47 miles for the SUV. Even tho the data is available on the EPA website, it’s bad news for Dual-Motor cars as well.

However, Rivian has adjusted its configurator to take into account the distinction. If you add the All-Terrain Upgrade to an R1T Dual-Motor or R1S Dual-Motor, the range is reduced by 52 miles to 300 miles.

Interestingly, no correlations exist between that number and any listings on the EPA website. There is no record for an R1T Dual-Motor with 20-inch wheels, and the entry that appears to correspond to the R1S Dual-Motor with 20-inch wheels shows the range at 289 miles, a loss of 61 miles.

Rivian R1T
Rivian R1T(Credit : MOTORTREND)

If you delve far enough into Rivian’s configurator, the solution becomes apparent: the business reports its mileage figures, not the EPA’s.

With its forthcoming Max battery, the company predicts that the R1T Dual-Motor will have a range of up to 400 miles and the R1S Dual-Motor will have a range of up to 390 miles.

The real EPA ratings can be different. The forthcoming Standard battery pack is the same. Rivian says it will only be available on the R1S Dual-Motor and that its range on a 21-inch wheel will be limited to 260 miles.

The all-terrain tires are not yet available with that battery, and there are no projections for the 22-inch wheel either.


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