New Light Weight Thermoplastic Wheels For Smart

[Alex]

OEM steel front with EcoContact EP a little less worn: 24.6 lbs.OEM alloy front (styleline?) marked smart 001425V001 with same tire a little more worn: 22.8 lbsSame scale, two weighings each with same reading. (I didn't check or compensate for pressures. I know, not very scientific of me.)

[bilgladstone]

Thanks Alex :thumbup:B

[lebikerboy]

OEM steel front with EcoContact EP a little less worn: 24.6 lbs.OEM alloy front (styleline?) marked smart 001425V001 with same tire a little more worn: 22.8 lbsSame scale, two weighings each with same reading. (I didn't check or compensate for pressures. I know, not very scientific of me.)

Pretty much as I expected...Thanks Alex!

[MikeT]

Aha, so smart steel is heavy metal.

[bilgladstone]

[Duck]

BASF makes the crazing roofs of the 451, don't they?

No, Makrolon is a Bayer product.-Iain

[MikeT]

OK thanks, maybe that BASF stuff is better. Makrolon is what my 404 C taillight lenses were made of 46 years ago, yet they seem OK.....

[bilgladstone]

Oops, they weren't naked. Here are the figures with tires mounted:

strikeline, Front - 5J-15, with 175/55-15 Conti Eco Contact T Rated: 12.5 kg (new tires)

strikeline, Rear - 6.5J-15, with 195/50-15 Conti Premium Contact T Rated: 14.5 kg (new tires)

jetline, Front - 4J-15, with 145/65-15 Conti Eco Contact T Rated: 11 kg (tire with 42,000 km of wear)

jetline, Rear - 5.5J-15, with 175/55-15 Conti Eco Contact T Rated: 14.0 kg (tire with 9000 km of wear)

Now, someone go weigh some steelies w/tires and we've got a thread going.

Roadster, Rear steel - 5.5J-15, with 175/55/15 Hankook Ventus V4 H105 T rated: 12.25Kg (7.500 km wear)

B

Edited June 5, 2012 by bilgladstone

[tolsen]

Original 450 steel rim 3 1/2J15HA with GT Radial WT-70 snow tyre 135/70-R15: 11.6 kg.Original 450 steel rim 5 1/2J15H2B with Maxxis Presa Snow 175/55-R15: 13.7 kg.Both tyres have insignificant wear. Weighed using my bathroom scale which I bet is pretty accurate since it always seems to indicate on the heavy side when I step on it.

[MikeT]

So the steel wheel and OE width alloy rims weigh about the same. My jetlines were 4" wide at the front, not 3.5, and the tires were 145, not 135. So call it a draw.

[bilgladstone]

Result: pretty much what Keith and I found when we weighed various wheels (he has a ton of them!): there is no significant difference in weight between standard smart alloy rims and the steelies. It was surprising to us on that day, and now confirmed with these reported weights.