OK, EV fans. If anyone ever tells you that Low Rolling Resistance (LRR) tires are one of the key pieces to your vehicles energy efficiency, LISTEN TO THEM.
I recently bought a used set of low profile tires off of craigslist that made Electro look supercool and be very energy inefficient. Let me explain.
The stock tires for Electro were 185/60/14, which translates into tires that are 185mm wide and go on 14in wheels.
The new "supercool" wheels/tires I bought were 205/40/16s, which means they were 205mm wide, low profile, and had extra big wheels (16in).
Driving the same distance with the wider tires made a HUGE difference in the amount of energy I was using, which is extremely important in an EV. For a trip where I would normally use 7.1 KWh, I ended up using 9.3 KWh. That's 30% more energy - to look cool.
I am going back to stock wheels/tires for now until I can go the other way and find a narrower set of LRR wheels and tires. Hopefully I will find some that will get me significant range increases!
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