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Old 04-07-2017, 08:50 PM   #7 (permalink)
oldtamiyaphile
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Join Date: May 2009
Location: Australia
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UFI - '12 Fiat 500 Twinair
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Get yourself some Moondiscs and be done with it I miss how easy they were to clean compared to even the smoothest alloy wheel.

Alloy wheels are usually wider than steelies.

On my Fiat the lightest OEM wheel option is the steelie, wheel cover and 175 tyre. The 16" alloys are heavier, require at least a 195 tyre and they kill the aero.

The alloy wheels cost me at least 4mpg. The car is also notably more peppy and generally happier with the smallest/ lightest OEM option.

IMO if you can't afford to go forged, stick with steel.

Quote:
No linky, but I did some research and it appears tire weighs about the same as aluminum and less than steel. So the wheel diameter shouldn't matter with aluminum.
But the bigger wheel rim still means greater rolling inertia, even if the overall weight is the same. You also replace an aerodynamically smoothish side wall with and extra inch of aerodynamically dirty open faced alloy.
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