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Light weight tires
Topic Started: May 5 2011, 11:32 PM (2,536 Views)
Norby
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Just sharing this in case someone is looking to save weight on tires.

Found out Sumitomo makes a 51 psi, 175/70r13 tire, model HTR-T4, that weighs only 11 pounds.
Sumitomo
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I have been scouring the internet for a lightweight 13" alloy rim to go with it. Will let you all know if I find something.
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Bad Bent
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Facetious Educated Donkey

I'll bookmark this for the Wife's car. Thanks. Do you have a price? :-/

I assume you have visited Other Wheels That Fit Metro
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mjspiess
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'98-'99 Hyunda Accent rims only weigh 12 lbs a piece. That's prob. the lightest 13" OEM rims you're going to find. Check www.car-part.com. That's how I found mine. Craigslist is also another good source.
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nerys
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Grr

If anyone can find me a set of THESE rims I will pay well for them

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They are American Racing Rims 13"
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Norby
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Bad Bent
May 6 2011, 10:34 PM
I'll bookmark this for the Wife's car. Thanks. Do you have a price? :-/

I assume you have visited Other Wheels That Fit Metro
Tirerack has them for $63 each.
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Norby
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mjspiess
May 6 2011, 11:37 PM
'98-'99 Hyunda Accent rims only weigh 12 lbs a piece. That's prob. the lightest 13" OEM rims you're going to find. Check www.car-part.com. That's how I found mine. Craigslist is also another good source.
But rockauto says the Accent lug pattern is 4x104. Or is that wrong information?
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bogs
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Duct tape heals all wounds

I don't know if thats wrong info, but they do look awesome on his car :D
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jimyoung
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oldman
May 5 2011, 11:32 PM
Just sharing this in case someone is looking to save weight on tires.

Found out Sumitomo makes a 51 psi, 175/70r13 tire, model HTR-T4, that weighs only 11 pounds.
Sumitomo
Posted Image

I have been scouring the internet for a lightweight 13" alloy rim to go with it. Will let you all know if I find something.
I haven't weighed them, but I did try some Toyota 13" steel rims and tires. They felt twice as heavy as the Geo 12" wheel & tire and resulted in about 5 mpg worse (after calculating the speedometer/odometer correction from GPS data). My 94 XFi is getting up in miles (210,000+) but has recently started getting worse mileage (down below 35 mpg around town, and seemingly no hope of matching the 62.5 mpg highway mileage I maxed at when really trying on the highway, typically 52 mpg on my standard 45 mile commute).

A few of us suspect the fuel may have more ethanol than it used to (max is 10% here, but amateur testing claims 18% to 19% found at some stations). I don't believe the amateur results but do suspect the percentage is higher than it was (maybe 7% when it was 5% for a given seasonal blend). So far, I avoid high ethanol fuels like the plague, since the first batch of Arco I ran in the Geo back in 1997 or so dropped my mileage 28% (part of which may have been due to construction route change on 45 mile commute). The same conditions only dropped my mileage 14% on Shell and 16% on Chevron. Shell and Chevron tied, on miles per unit cost, Arco ended up more expensive (per mile) with far less range. I like Shell best, but Chevron is more convenient, costs the same per mile, and only suffers a slight range loss over Shell. Perhaps new Flex Fuel cars adapt better to the ethanol but my experience is it costs far more than its worth (for my vehicles), even with the massive subsidies to farmers.

Will be anxious to try lighter LRR (low rolling resistance) tires on bigger and lighter rims (junkyard prices preferred), especially since 12" tires are getting very limited (the last one I found was a used one off a GEM electric neighborhood vehicle, amazingly rated higher than the street tires on my Geo).

Jim Young
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nerys
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Grr

11 pounds is nice but those are REALLY wide tires. wish they made a 155 version of that.
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100MPG


tire rack says they are 15 pounds, but i like the 51 pound pressure rating and the price, but the sumitomo site lists them at 11 pounds :thumb

Dana
Edited by 100MPG, May 16 2011, 02:56 PM.
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Norby
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Update: I see now they list 165/70-13 as an option.
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