Chevy Bolt EV 15" vs 17" Tire Efficiency test
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- Опубликовано: 17 янв 2025
- My Chevy Bolt is much more efficient on the 15" tires and there are other advantages too. I measured 21% less energy used at 65 mph on 15" tires vs 17". Best upgrade I've done to the car.
This is accurate and known by the industry. The reason for larger rims is basically customer demand/sales.
This is exactly what I’ve been wondering and all I could find are forums talking about. Definitely going to do this when I need new tires. I know they’ll pay for themselves
The 15" tires were $200 cheaper than 17" and the wheels were $150 so they paid for themselves on day 1.
im glad i found your video.... i live in a city with bad roads an the ride is unbearable at times... an annoying... i wanted some nice chrome 15's but right now dont really care for flashy anymore
continental tru contact have a load capacity 1531 for each tire....
Thats what I expected .thanks for proper results.
Nice man, I think I saw your Reddit post on the 15’s. I found a local Sonic set myself and just got them mounted. Ride feels much smoother. I have a bad TPMS sensor on my back passenger side, so trying to decide if I’m just gonna deal with the alert every time I get in the car or find a local tire shop to get a new set installed.
@@TheMule93x yes I posted on Reddit when I got the 15” wheels. Are you seeing a noticeable increase in efficiency too?
@ hard to tell with winter in Michigan. Will get a better idea come spring time. I’m running the heat pretty constantly, so my efficiency is pretty shit at the moment lol.
Thanks for this- I've been wondering for a while if this change would help overall efficiency and range.
Awesome test! GM could have marketed the Bolt with 300+ miles of range!
i drive my 2017 nice an slow an never go over 65,,, unless i race someone,, i can charge to 280...
Just curious, would the results still be about the same if you only switched the 2 front wheels and left the 2 back ones the same?
Yep easy results. On my 2019 Honda Fit 6sp manual, swapped from the super heavy 16inch wheels to 8lb 15inch wheels with slightly narrow tires. Along with a few other mods, I hit 51mpg highway and over 40mpg in town. Saved around 48lbs of unsprung rotational mass and a lot less wind resistance.
damn 8lbs?! what wheels that light? I put Konig Heliums on mine and thought that was pretty light but that is still 12lbs.
In the US - do you get a rolling resistance marking like in EU ? Letters from A to G? Tyres from A can have half of rolling resistance than from G
I wish!
That is unreal! I'm looking at getting a bolt right now but I really don't like the rims. The Sonic rims are okay but it would be nice to see a good looking performance 15-inch wheel that fits. I can't find something to save my life. There are great looking rims for Honda civics but nothing with the Chevys bolt pattern. It really is a shame because that is stopping me from getting this car.
I bought a used set of Cruze ECO 17” forged wheels and had them stripped and powder coated in an OEM-like silver color. They are very light and serve as a great looking summer set (with Michelin Pilot Sport AS 4). I just weighed them last night after their first season and they are 41.2 lbs on all four corners with ~7/32 tread left.
The set of 15” tires cost me $200 less than 17” tires and the 15” wheels were only $150 for the set at a local junk yard. So they paid for themselves on the first set of tires. I think they look fine. If you’re driving a Chevy Bolt it’s not exactly a status symbol car anyway.
@@alexkram Funny enough the Cruze ECO wheels cost me $200 on Craigslist and the refinish was done by my brother who works at alloy wheel manufacturer. Glad you are enjoying your 15” set.
With a change in tire size doesn't the speedometer need to be recalibrated for the smaller tire?
Im too lazy to see whole video. What are results? Ill recalculate for tyre size then.
as stated in the video they have the same outer diameter so no need to change calibration
@@gmshitbox5621 what is result?
@@NoName-md5zb No need to change the calibration. It is the exact same. Jesus Christ just watch the video
@@NoName-md5zb the result of the video is the 15” tires were 21% more efficient. I put that right near the beginning of the video. I hate wasted time too.
Well the 15" wheels are 0.10822511% bigger, so result is even better than 21% :D
Efficiency is not right term. Rolling resistance.
People in the EV sphere call the miles/kWh metric efficiency. Similar to mpg for a gas car.
@alexkram it sbould be called consumption
@@NoName-md5zb Efficiency is an engineering term that is usually some output you want divided by the input required to get it. In this case it is miles driven divided by the amount of energy consumed. For this test the miles driven were constant so there was no division necessary and in this case consumption and efficiency are inversely proportional.
@alexkram miles and energy divided is consumption. Efficiency is useful energy/total energy.
@@NoName-md5zb Call it whatever you want. I know I will.
first.
Second😂