Anyone running Hakka R5 SUVs?

[usulio]

Bump!

Reviving this thread as my stock 20” Pirelli ATs are nearly bald at 30k miles and I am looking to swap to winter tires for this winter. Is anyone running the R5 SUV 275/60/20? Plan to swap to Michellin Defender MS2 in that size next Spring, so would prefer to maintain the same tire size to avoid software update for tire swaps twoce per year.

Am planning to put them on this winter. Wasn't my first choice due to price but that's what Tire Rack had available and would willingly ship to me based on their load rating calculations. (Apparently the Blizzak 275/60/20 is 40 pounds short in the back.) But I haven't tried the Nokians yet.

I'm actually running 275/65/20s in the summer but I wanted to go down a size for better winter range (hopefully) and ability to put chains or cables on (maybe). I hoped Rivian would allow user adjustment of vehicle's electronic tire size setting, but it seems that's "coming s00n".

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[James Connolly]

I have a dual-motor R1S with 21's delivered Dec '23. My 21" Pirellis are holding up well enough so far (9.5K miles, one tire rotation) but wanted another winter option after some white knuckles in the Green Mountains of VT last January. I just received a set of 4 Nokian Hakkapeliitta R5 SUV in size 275/60 R20 116T XL. I'm likely getting them mounted on Rivian OEM 20" wheels (ordering, not delivered yet) I like the look of the OEM 20 (and 21" wheels) and haven't seen an aftermarket wheel that I like better. (I would be willing to get wheels I liked less, provided they would save me a LOT of money). Once I get them on, I will report my findings (feel, noise, mileage, etc.). One thing I noticed is that the R5 are marked on sidewall with a specified direction of rotation, so that will likely impact tire rotation schemes.

I hope I won't lose too much range, but it's better than unsafe driving in snow. I went with 60 profile tires to better match the circumference of the OEM 21" Pirellis +/- 0.2". The Hakka R5 appears to be 7-10 pounds lighter than the OEM 21" Pirellis and is DEFINITELY lighter than the OEM 20" AT Pirellis, so hope that helps (depending on the relative weight of the 20" compared to 21" wheels - some data indicates that both are ~30 LB +/- each). R5 are advertised as optimized for EVs.

The only other thing I can think of that impacts range is that somebody (IIRC EV Sportline) sells aero inserts for the OEM Rivian 20" wheels. Is there any data on how much aero inserts help? Possibly a test of the 21's with or without inserts?

Inquiring minds, etc.

 

[ThirteenElectrics]

I've been rocking the R5s for about two weeks on the R1T. The R1S has LT3s. So far I've appreciated the smooth ride. The tires do seem to kick water up onto the windshield, like a fountain, which is a phenomenon I've never seen before, and find amusing.

 

[ThirteenElectrics]

It got complicated when I spoke to my go-to tire shop and they wouldn’t install the R5s for me. While technically they could handle the weight, they are a slightly lower spec than the default 20” AT wheels. They would only install at that spec or above. They really wanted me to get the higher spec tire to handle the weight and torque of the Rivian. No sales pitch here as they were sold out of everything.

I don't believe this is true anymore. The new R5s have a 116 load rating. My shop installed them with no comment.

 

[obababoy]

I've been rocking the R5s for about two weeks on the R1T. The R1S has LT3s. So far I've appreciated the smooth ride. The tires do seem to kick water up onto the windshield, like a fountain, which is a phenomenon I've never seen before, and find amusing.

Ooooh can you compare R5 to LT3s? I care most about snow performance and second the ride quality. I'm on 20at, so would likely go LT3s...plus I have long commute down in Denver so trying to balance winter snow board trips safely and my daily drive

 

[ThirteenElectrics]

Ooooh can you compare R5 to LT3s? I care most about snow performance and second the ride quality. I'm on 20at, so would likely go LT3s...plus I have long commute down in Denver so trying to balance winter snow board trips safely and my daily drive

That's hard for me to do, as I am not driving the R1S and R1T back to back in the same conditions, sadly. I recently completed a trip through mountainous Eastern British Columbia with the R5s and didn't encounter any issues in the snow and in the cold (32F to -1 F). The LT3s do at least look beefier. I am happy with both. The R5s have a more automobile-like ride quality; they don't feel as much like truck tires and turn a bit more easily.

 

[obababoy]

Thanks. Yeah I think since I'll have a 32 mile one way commute each day in dry Denver I feel the R5s would wear out quicker.

 

[ThirteenElectrics]

Thanks. Yeah I think since I'll have a 32 mile one way commute each day in dry Denver I feel the R5s would wear out quicker.

Running them both a little longer, a few more observations:

• As one would expect, my 21" R5s have better efficiency than the 20" LT3s (which have a larger effective diameter due to the aspect ratio)
• The R5 tread pattern features a large number of "micro channels" which tend to suck up very tiny rocks. These "mostly" come out during highway driving, but I probably have 20-30 really tiny ones still stuck in each tire. I've purchased a tire hook to get them all out, but it's slow going. The channels have no egress cuts, so the rocks have to come out vertically. This is kind of annoying, but maybe these channels really help winter traction.

 

[Alanparkcity]

After calling around to a few more tire shops, the consensus is that it's preferable to do the LT3s on 20" rims and deal with the necessary reprogramming for the wheel diameter change.

I’ve had the R5 SUV, which I got for their 116 load rating, and they are better than the LT3’s I’ve had on other vehicles. The grip is similar but the R5 is quieter and longer wearing. Plus there is only 0.3% difference in height, so no changeover for size is necessary from my summer 21” wheels.

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