anyone know of a lightweight wheel?
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Another forum member and I met up to compare his stock ride height C55 and my C32 on H&R sport springs w/ #4 (17mm) rear spring pad... there really wasn't much difference at all, maybe half an inch or so. So I agree, with the C55, you might as well leave it stock or go with a full coilover set-up - KW (V1 or V2) and Bilstein PSS9 seem to be the favorites of C55 modders.
Forged wheels:
BBS RE 20.3-21.5lbs for 18x8 ET35 and 18x9 ET38 (i run 5mm front and 10mm rear BBS spacers make'em ET30 and ET28, but they are not needed to clear calipers)
BBS LM 23.5-23.9lbs for 18x8.5 ET30 and 18x9.5 ET32
BBS RS-GT 20.8-21lbs for 18x8 ET35 and 18x9.5 ET32.
BBS RG-R 20-21lbs 18x8 ET35 18x9 ET38. (12mm spacer from BBS is needed to clear the caliper.) look at BlakeP's car for example.
OZ Superleggera 3. 18x8 ET36 18x8.5 ET32. these should be around 21-22lbs.
RENNtech Monolite. 18". forgot the width or offset, but they should weight around only 18lbs.
SSR Comp-H 18lbs 18x8. most likely discontinued.
SSR GT3 18x8.5 18x9.5...not sure if you can even find these anymore either.
cast light weight wheels:
OZ ultraleggera 18.5lbs for the 18x8 ET35
OZ superturismo 24.7lbs for 18x8 ET35
OZ Crono 20lbs for 18x8 ET35
BBS CH 24.5lbs for 18x8.5 ET35 (need 5mm spacer to clear coilover)
BBS RX 24.3lbs for 18x8 ET32 (probably needs a 5mm or 10mm to clear the caliper. This is basically the cast version of the RG-R)
BBS RA approx. 22lbs each. 18x8.5 18x9.5 ET32. They are discontinued, but you can find them used usually on Audi forums. All you need is make the center bore bigger if the RA doesn't run BBS's hubring/spacer design.
other options I know less about which can be custom ordered in 18" spec you want if the shop has contact with Volks/Rays and Work:
Volks Racing TE37
Volks Racing CE28
Work Wheel VS-XX
hope this list will help some of you determining what you want for light weight wheels. There are more of them in 18" fitment such as the mentioned Enkei's etc. feel free to add them if you are sure about them.
Last edited by FrankW; Mar 31, 2008 at 07:40 PM.
light weight wheel's advantage is that you have less unsprung weight at each corner which in terms makes the steering response better and handles better because there are less weight at each corner to swing into the corner. 18 vs 19 advantage is on the weight of the wheel, weight of the tires, and tire width. we all know bigger contact patch can mean better traction, but it also means more friction against the road. 18 vs 17 is more about tires. although low-profile some 17" tires can still have soft sidewalls which can retard the steering response. 18" gives you an option to upgrade to larger caliper and light weight 2 piece rotors as well which is another way to improve handling.
I never got a chance to weight the front ones 
RennTech monolites are one of the lightest and high quality rims out there, but unfortunately they are outrageously expensive. I think the 19" monolites weight about 17 to 18 lbs.









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