Hello

Which tire is better for "Fuel efficiency / Performance" this is for daily driving
(car will be lowered NOT slammed)

205/50/15 or
195/50/15 or
195/55/15

Thanks

 

i ran 195/55 and 195/50 as far as performance or fuel efficiency I didn't even notice a difference, 195/50 looks better because of the smaller sidewall but it also felt a little harsher(i mean little) compared to 55 series. Everyone has their own preferences though, ill choose 195/50 for oem 15" rims, but thats just me, I heard alot of good things about 205/50 too. Most people will probably tell you 195/55 look too beefy

 

The year/model of car dictates what tire size you should be running, so without knowing anything about the car it is impossible to give accurate advice.

 

This is for my 2011 Honda Fit Sport. it came with 16 stock rim/tire
but I want to switch to 15x7. I want a lighter wheel for more MPG and better
acceleration, but mainly MPG.

Thanks.

 

195/60R15 is the proper size to run to keep overall diameter correct. Both sizes you listed are smaller in diameter and would not only wear more quickly than the correct size (due to load issues) they would most likely cause issues with ABS unless the car was recalibrated for the smaller diameter. You'll be better off using the correct size and a LLR (low rolling resistance) tire than playing games with a smaller tire and a "standard" rubber compound.

 

error.

smaller wheel = lower gear, better acceleration and lower highway mpg's

i'll add that unless you're planning on spending $3000 on wheels, you'll only save a couple pounds/corner at most. you could probably drop that emptying the glove box of useless crap. and even then the difference will be negligible at best.

you could put a tire on your existing wheels that has less rolling resistance. there are a few out there specifically designed for this purpose. you could then increase the tire pressure beyond the car's recommended pressure more toward the tires maximum. but you'll drastically change the vehicle's dynamic stability. not to mention you'll wear tires faster and tires are still more expensive than the tiny gas bill from a fuel sipper like a honda fit.

if you haven't looked into hypermiling, google it and check out the basics. there are some good ideas out there. but most things drastic things like changing tire sizes and stripping interior parts just aren't practical for anyone who isn't a dedicated hypermiler that gets a rise off of getting .2mpg more than some other guy on a forum.

 

read this thread in regards of lowered and rubbing...

https://honda-tech.com/forums/acura-integra-6/gsr-blades-specs-request-2643782/