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      10-15-2017, 07:22 AM   #1
chrispitude
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Seeking advice: light, strong 17" street wheels

Hi all,

I picked up a CPO 328d xDrive wagon last weekend, and I love it! It came with 17x7.5 Style 393 wheels, which I plan to repurpose as winter wheels.

I'm a big fan of reducing unsprung weight. I'm trying to find a decent set of lightweight 17x7.5 or 17x8 wheels for summer use. Rotary forged wheels seem like a decent weight/strength/cost option. How are TSW and Beyern wheels regarded? What about OZ? Kosei racing wheels are light, but I've seen some scary pictures of broken wheels from street use.

And then there's finding something that doesn't look awful and isn't hideously difficult to clean...
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      10-15-2017, 10:36 AM   #2
alohasurftoad
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Quote:
Originally Posted by chrispitude View Post
Hi all,

I picked up a CPO 328d xDrive wagon last weekend, and I love it! It came with 17x7.5 Style 393 wheels, which I plan to repurpose as winter wheels.

I'm a big fan of reducing unsprung weight. I'm trying to find a decent set of lightweight 17x7.5 or 17x8 wheels for summer use. Rotary forged wheels seem like a decent weight/strength/cost option. How are TSW and Beyern wheels regarded? What about OZ? Kosei racing wheels are light, but I've seen some scary pictures of broken wheels from street use.

And then there's finding something that doesn't look awful and isn't hideously difficult to clean...
tsw makes beyern wheels. i believe they also manufacture for Rohana and a couple other brands as well. oz HLT are a bit more expensive. kosei's k-1 are low-pressure cast (not as strong as RF), made in japan and are very light. the K5R however have flow formed(rotary forged) barrels so a bit stronger.

although 17's are fine for winter, for summer, i think 18's are the minimum size that looks best.

if you are sticking to 17's, these TSW Bathurst in 17x8, 5x120, +35 is what i'd get. these are the lightest design that TSW makes.

https://www.amazon.com/TSW-Bathurst-...0+tsw+bathurst

https://www.amazon.com/TSW-BATHURST-...0+tsw+bathurst

Last edited by alohasurftoad; 10-15-2017 at 10:56 AM.
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      10-15-2017, 11:24 AM   #3
chrispitude
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Quote:
Originally Posted by alohasurftoad View Post
tsw makes beyern wheels. i believe they also manufacture for Rohana and a couple other brands as well. oz HLT are a bit more expensive. kosei's k-1 are low-pressure cast (not as strong as RF), made in japan and are very light. the K5R however have flow formed(rotary forged) barrels so a bit stronger.

although 17's are fine for winter, for summer, i think 18's are the minimum size that looks best.

if you are sticking to 17's, these TSW Bathurst in 17x8, 5x120, +35 is what i'd get. these are the lightest design that TSW makes.

https://www.amazon.com/TSW-Bathurst-...0+tsw+bathurst

https://www.amazon.com/TSW-BATHURST-...0+tsw+bathurst
Believe it or not, I prefer the look of the 17" wheels because it balances against the "pull-me-f-over red" color of the car.

Thanks for all the great information! Where did you find weights for the TSW wheels? I've also seen conflicting information on whether all TSW wheels are RF, or just some of them.

I've had a set of BBS RK 17x8 et35 wheels since my E36 days, 16.8lbs each. Unfortunately they were made before TPMS sensors were ubiquitous, and the seat where the seal sits is rounded.
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      10-15-2017, 11:44 AM   #4
alohasurftoad
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Quote:
Originally Posted by chrispitude View Post
Believe it or not, I prefer the look of the 17" wheels because it balances against the "pull-me-f-over red" color of the car.

Thanks for all the great information! Where did you find weights for the TSW wheels? I've also seen conflicting information on whether all TSW wheels are RF, or just some of them.

I've had a set of BBS RK 17x8 et35 wheels since my E36 days, 16.8lbs each. Unfortunately they were made before TPMS sensors were ubiquitous, and the seat where the seal sits is rounded.
i don't think the difference between 17's and 18's will make any difference to being pulled over however TEHO

not all TSW are rotary forged. i have seen the weight of 18x8.5 tsw bathurst somewhere and recall it was slightly under 19lbs (not super sure on this) so i assume 1" less diameter and 1/2" width will be lighter however i am not sure of exact weight. you may have to contact TSW or a seller to find out.

consider these apex arc-8 (17.2lbs), not as fun to keep clean, tho. https://www.apexraceparts.com/wheels...c-8-wheel.html

edit forgot about these...http://www.forgestar.com/wheels/coll...ck-series/f14/

edit here's tsw rf construction. http://www.tsw.com/tsw-rotary-forged-wheels.php

Last edited by alohasurftoad; 10-15-2017 at 12:05 PM.
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