Wheel and tire weights ??

[GTRCLIVE]

Does anyone have the weight for a Std Ult front and rear Wheel without tires ? and while I'm at it maybe a assembled rear upright weight to......

Thanks Steve_D.....maybe..

[Steve_D]

Sorry no.
Lucky P will have them as that must have formed part of his justification for going Dymag.

Steve

[JoulesCanAm]

I weighed mine some time back and posted in a previous wheel thread.

Fronts were 22lbs and rears 27.5lbs.

Julian

[cliveg]

My rear uprights weigh approx. 21 1/2 lbs. Sorry that's not too accurate as I only have a cheap pair of bathroom scales! My uprights are from Sep 2003. I don't know if they have changed since then (the front ones have, but not sure about the back).

[V8Dom]

Steve_D said:

Sorry no.
Lucky P will have them as that must have formed part of his justification for going Dymag.

Steve

R u sure Pete just didnt want to show off

Im not so sure its a good idea to have too lighter wheel on the Ultima as surely you then have to change spring rates and things as the wheel moves that much faster up and down, making the ride a bit harsh....Its an interesting subject which I only know via bikes and thats a different ball game. as the bike only weighs 100kg..

Anyone else here know and is it a discussion like the 'do I need a flat floor for better aero' where we will never benifit from the cost or time advantage unless we are racing??

Dom

Edited by V8Dom on Tuesday 9th March 19:36

[JoulesCanAm]

Unsprung weight is generally accepted as a factor of 4 times that of sprung weight, so removing 10lbs per wheel for 40lbs of unsprung weight is the same as removing 160lbs from the sprung weight inside the car, so much bigger advantages.

Julian