rim size - Toyota Yaris Forums

Split · 02-10-2009, 03:11 PM

lots of miss-information in this thread. some people don't seem to understand the simple concept, that when you run bigger rims, you run lower aspect ratio tires. the diameter stays the same, torque stays the same.

wide tires = loss of fuel economy
1) more weight (loss of FE when accelerating)
2) more rolling resistance (loss of FE at speed)
3) more drag / wind resistance (loss of FE at speed)

larger wheels generally weigh more, but (for example) SSR Type-C's in 18" are with light tires are still lighter than the stock 15"s, and will probably achieve better fuel economy.
that said, your tires will be like rubber bands and your wheels will be dented in no time!

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02-10-2009, 03:11 PM	#1
Split Drives: 2008 Yaris Sedan Join Date: Oct 2008 Location: Edmonton Posts: 393	lots of miss-information in this thread. some people don't seem to understand the simple concept, that when you run bigger rims, you run lower aspect ratio tires. the diameter stays the same, torque stays the same. wide tires = loss of fuel economy 1) more weight (loss of FE when accelerating) 2) more rolling resistance (loss of FE at speed) 3) more drag / wind resistance (loss of FE at speed) larger wheels generally weigh more, but (for example) SSR Type-C's in 18" are with light tires are still lighter than the stock 15"s, and will probably achieve better fuel economy. that said, your tires will be like rubber bands and your wheels will be dented in no time!