How to make wheels? BBS 3pc for ex.??

[euro911sc]

I see outer and inner halves with or without centers 20 bolts or 32?

How can I tell what I need if I were to try and build a 7-7.5 x 16 front and 9 x16 rear to bolt on to my SC w/o spacers? I under stand some of the basics in wheel dimensioning, but if you feel like refreshing my memory thats fine

Logically, inner + outer width should be rim width. Do I need to add something for the center? Then there is the offset or back spacing problem... which is where I loose it

Please educate me!

Best regards,

Michael

[Bill Verburg]

This isn't a DIY sort of thing, deal w/ a reputable wheel supplier.

That said the 3 pieces of a 3 pice wheel are the outer and inner halfs and the center

here is a bare center for a Kinesis


here the outer half is attached


here is the back of the center piece, the inner half bolts here.


for use on an SC/Carrera a 7.5" front will want ET of from +23 to +31(I would shoot for 25)

the 9" rears will want ET of ~11-19mm(I would shoot for 15)

[euro911sc]

Thanks Bill. Curious though, if it's not a DIY thing then why do I see all kinds of outers and inners for sale on the parts forum? Do they buy all the parts and send them off somewhere?

Best regards,

Michael

[Jim2]

Might be some confusion here with DIY referring to the conversion of a 6" fuchs wheel to be used as a center versus using a BBS brand center.

If you use BBS centers you certainly can assemble them yourself. BBS centers are a little rare on their own, most often you have to part a set of wheels to get them then acquire additional halves as needed to create the desired offset.

Converting the 6" fuchs wheels to be used as centers is a simple concept, however attention must be paid to the contour when machining to ensure there sufficient strength remaining. I have heard of a couple companies who did, or will do the conversions.
Lindsey ?

Jim

[William Miller]

I have some good centers and outter rims for a set of BBS 3 piece wheels 32 bolt. (I think) I need some outter rims because a few have big bends (Beyond straightening.)

Who sells the outter rims for these?
I know that swoping the rims are done often. There are some VW's that like the look of oversized (Width) rims with skinny tires. Who knows why.