Contour Enthusiasts Group Archives Forums Modifications Wheels & Tires weight of rims

I'm looking into buying Focus SVT rims (17 X 7) for my car from BAT. I noticed that they weigh about 21 pounds. Does anyone know what the stock 15" rims on my car would weigh? I like these rims but I do want to have a little less rolling weight. Cuz my car needs all the help it can get for power so I dont want to add much if any weight to it.

Thanks

why dont you take one off and weigh it.

I believe 21 lbs is lighter than stock 15s. Even if it isn't You got 17s now.

Stock 15" Wheel 16-17 lbs..... A 17" tire will be lighter then the stock 15" tire. Should put you to about the same weight. Why buy the heavy Focus SVT wheels when you can buy other nice wheels that are lighter? I have ADR Mase 17" that weigh 17.5 lbs a piece. Got them from Whalen Tire if your interested.

Please don't flame me for speakin out what I believe, but I have heard that a smaller wheel of the same weight as a larger-diameter wheel will spin up faster. Intuitively, this makes since since there is less mass to accelerate.

The problem with this is that a smaller wheel means a larger tire. You could end up with more or less mass to accelerate, or you might end up with the same or less.

I know from experience that a smaller diameter wheel will accelerate quicker because the mass is physically closer to the axis upon which it is being spun (the axle - where the centercap is).

---

The FocusSVT wheels are nice and clean and I would get them if the wheel/tie combo was under $1000 (and I didn't already have aftermarket rims/tires).

Honestly, I don't think you will notice much difference (you might hear some difference in roadnoise or feel some vibrational difference on the steering wheel). Tires will make more difference than the wheels will.

BTW - it would help if you spec-ed your car so we could tell which 15" wheels you have =)