Wheels & Tires For MPG - Toyota Yaris Forums

S1L3N7 D3A7H · 01-29-2009, 09:54 PM

Tell me what you think of this combo.

Wheels:
14x6 Kosei K1 TS Silver Painted (9.3lbs)

Tires:
175/65R14 Kumho Solus KR21 Blackwall (16lbs)

25.3lbs per wheel & tire.

How would this do for MPG and overall all season traction for light foot driving of a hypermiler?

*kimona* · 01-29-2009, 10:29 PM

Well, I'm not a hypermiler, but if you're doing a fair bit of highway mileage, why not go with a taller tyre like a 175/70/14, which will fit very comfortably.

S1L3N7 D3A7H · 01-29-2009, 11:48 PM

Well its gonna be pretty 50/50. I'd like to keep the tire diameter as close to the stock 14s as possible.

PetersRedYaris · 01-30-2009, 12:36 AM

Going a little taller will lower your RPM's and can increase mileage a bit. And the KR21's kick ass in terms of winter traction. Nothing like a winter specific tire, but for an all season I haven't seen any better. I actually have them on my Xb...

ddongbap · 01-30-2009, 02:02 AM

Kosei= good choice.

Russelt3hPirate · 01-30-2009, 11:45 AM

Rays advertises a 3% increase in mileage for going to a lighter wheel and tire (on a Prius or Civic Hybrid).

I'd assume similar improvements.

I wouldn't expect much more.

01-29-2009, 09:54 PM	#1
S1L3N7 D3A7H Drives: 2003 Saturn Ion-1 Sedan Join Date: Jan 2009 Location: Lancaster, CA Posts: 14	Wheels & Tires For MPG Tell me what you think of this combo. Wheels: 14x6 Kosei K1 TS Silver Painted (9.3lbs) Tires: 175/65R14 Kumho Solus KR21 Blackwall (16lbs) 25.3lbs per wheel & tire. How would this do for MPG and overall all season traction for light foot driving of a hypermiler?

01-30-2009, 02:02 AM	#5
ddongbap Banned Drives: yw calls me douche and racist. Join Date: Aug 2007 Location: hay Posts: 2,183	Kosei= good choice. Last edited by kimona; 01-30-2009 at 07:39 AM.

01-30-2009, 11:45 AM	#6
Russelt3hPirate l33t3st Asshole Drives: MY07 Yaris Liftback Join Date: Nov 2006 Location: Epcot Posts: 588	Rays advertises a 3% increase in mileage for going to a lighter wheel and tire (on a Prius or Civic Hybrid). I'd assume similar improvements. I wouldn't expect much more. __________________

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01-29-2009, 10:29 PM	#2
kimona Super Moderator Drives: 2014 White VITZ Join Date: May 2007 Location: Huntington Bch, CA Posts: 4,938	Well, I'm not a hypermiler, but if you're doing a fair bit of highway mileage, why not go with a taller tyre like a 175/70/14, which will fit very comfortably.

01-29-2009, 11:48 PM	#3
S1L3N7 D3A7H Drives: 2003 Saturn Ion-1 Sedan Join Date: Jan 2009 Location: Lancaster, CA Posts: 14	Well its gonna be pretty 50/50. I'd like to keep the tire diameter as close to the stock 14s as possible.

01-30-2009, 12:36 AM	#4
PetersRedYaris View User's Garage Drives: 2005 Scion xB Join Date: Nov 2006 Location: The Black Hills of South Dakota Posts: 1,059	Going a little taller will lower your RPM's and can increase mileage a bit. And the KR21's kick ass in terms of winter traction. Nothing like a winter specific tire, but for an all season I haven't seen any better. I actually have them on my Xb...