BBS RS Question....

[6300 RPMs]

Originally Posted by voitureltd

Is there a difference other than the number of bolts, like magnesium vs drop forged or like MOT or / DOT approved? What ever the later ones were, they are. The titanium 3 piece ones (E50's) came with my cars that were built before mid 80's or so, then the RS series ones ( like on the last 930 in the same named blog ) must have been out later that decade. 32? 34? bolt? I never counted them but i suppose I will if anyone wants to be sure.

I'm not sure and never seen 32 bolt ones. Mine were stamped RS and bought new in 1984 or 85.

[voitureltd]

So if yours are 34 bolt then so my RS probably are also. I mentioned to Richard 930 they were 32 bolt as they were RS wheels. I have never counted them so they could be either. Reason is BBS offers a sealing ring for a lessor bolt wheel ( like 20 bolts or so) or the ring with more, like 32 -34 or some technical amount. They are RS wheels according to others. I bought them off of a race car. Apparently were bought at a time after the E50's were offered, also probably offered new at a lesser price than the titanium ones. The titanium center ones i have on other cars were all bought and installed late 70's early 80's as that, if for no other reason, were all that was available at that time.

[Richard930]

From the BBS website:

"The legendary RS wheel is the real BBS classic in road wheels. It was the first 3-piece wheel on the market and came 1983. The RS wheel was produced until 1995. The wheel centre was made out of forged aluminium and finished in brillantsilver or gold. A lot of versions from 15 to 17 inch were available, most of them fixed with 34 bolts. Usually RS wheels had the centre fitted between the inner and the outer rim half, sealed by a special sealing glue".

BBS RS

My mistake - 34 bolts, not 32 (failing memory)