BBS RS Question....

Groovie Ghoulie · Groovie Ghoulie's Garage

For any of you out there with the 16x8 BBS RS wheels, do they fit on the front without issue? and if so, what model number are they? The RS 013?

I just found out why my 245 rears and 225 fronts looked funny, the PO put 16x10 rears on, and 16x7 fronts. I want to buy the gold center 16x8's to get the ratios closer to the 7 front 9 rear factory setup. I will use the Kumho 265 rears and 225 fronts.

and by chance does anyone with the 265 Kumho ecsta xs have a picture of how they fill out the rear arches?

Thanks for all your time guys and gals.

Richard930 · Richard930's Garage

Pretty sure my fronts are 013 and they fit perfectly and look great with 225s and no spacers. I have 10s on the back and 245s are too skinny -hence my switch to RUFs.

Norm K · 01-15-2013, 09:15 PM

Quote:

Originally Posted by Richard930

I have 10s on the back and 245s are too skinny -hence my switch to RUFs.

Makes sense. Wheels that are 254mm wide are a bit much for tires that are only 245mm. Unless, of course, you're a young Subaru or Audi guy that likes the "stretched" tire look ...

Richard930 · Richard930's Garage

Quote:

Originally Posted by nkowi

Makes sense. Wheels that are 254mm wide are a bit much for tires that are only 245mm. Unless, of course, you're a young Subaru or Audi guy that likes the "stretched" tire look ...

Ha - that's definitely not me! Would love to turn my RSs into 17s though...

voitureltd · 11:50 AM

I have 10 inch BBS rears and and 8 inch fronts I use use Kuhmo 225 up front and 255 or 265 ( have to look ) on the rears.They are readily available (i have another 930 with different wheels but also 8 front and10 inch rears). The look,fit and work nice for summer road or light track use.

Richard930 · Richard930's Garage

My other motivation for putting new barrels on is that I've had some cracking on the inner rim halves so my confidence in them is not there anymore.

Are the 265s 45 profile or something different?

voitureltd · 11:59 AM

Quote:

Originally Posted by Richard930

Are the 265s 45 profile or something different?

The rears are Kuhmo either 255 or 265 45 profile, and fit the 10 inch rim perfect. I also have a 930 with the 17 inch rim halves, I think it has Michelin, 40 profile on the rear.

Groovie Ghoulie · Groovie Ghoulie's Garage

well, be aware that when I tried to get the Ecsta xs they are discontinued in any 16 inch size. I had to find some on ebay. that was this morning. And I am planning on having a pair of my Rs's rebarrelled to 17 inch. does anyone have a picture of some done that way? i worry the 16inch style center "fan" will look silly with the wider rim.

voitureltd · 01-16-2013, 02:06 PM

i worry the 16inch style center "fan" will look silly with the wider rim.[/QUOTE]

Here they are on my 78 930. If you like BBS I think they look just fine.

voitureltd · 02:21 PM

Groovie, Another angle

oh snap · oh snap's Garage

Voitureltd I go back and forth between what wheels I love the best but I always come back to BBS E50. Those look perfect. Do you know the offsets? I want to try to piece together a set.

Richard930 · Richard930's Garage

Those aren't RS centres though...

Groovie if you find a place that can supply 17 inch rim halves for the 32 bolt RS road wheel centers please let me know who and where. I thought I found a place in western Canada but they've gone silent on me

voitureltd · 06:43 PM

[QUOTE=Richard930;7220562]Those aren't RS centres though...

Were the rs centers later? The BBS wheels on the car pictured before were ordered new with the car in 1978 and are 32 ( i think ) bolted centers. A few years ago the original owner bought the later 17 inch wheel halves for a better choice of tires. I also have a 1977 ( pictured ) with the later 32 bolt 8-10 inch BBS wheels but still 16". The fronts were a little close turned lock to lock using stock spacers with Euro rice height. I have since exchanged them for the 16" German Ronnal wheels so they are in storage , PM if interested. I also might replace the 17" wheels and Pirrelli tires on the 78 930 pictured before so they may be available also.

voitureltd · 07:30 AM

OOps, forgot the current photo of it with the vintage 16" Ronnal wheels. 225 Kuhmos for the 8" fronts and 265 Kuhmos for the 10" rears.

Richard930 · Richard930's Garage

[QUOTE=voitureltd;7220661]

Quote:

Originally Posted by Richard930

Those aren't RS centres though...

Were the rs centers later? The BBS wheels on the car pictured before were ordered new with the car in 1978 and are 32 bolt centers. A few years ago the original owner bought the later 17 inch wheel halves for a better choice of tires. I also have a 1977 ( pictured ) with the later 32 bolt 8-10 inch BBS wheels but still 16". The fronts were a little close turned lock to lock using stock spacers with Euro rice height. I have since exchanged them for the German Ronnal wheels so they are in storage with recent tires ( not sure if they are Kuhmo or B F Goodrich Z Tires ) with 1K or so miles , PM if interested.

Hi Tony - those are RSs and that's my setup (8 and 10) exactly

. These are the wheels I'd like to convert to 17".

I'm not sure what the years of production were for the RSs

JFairman · 01-21-2013, 08:38 AM

I don't know what years the RS series were made either.

The RS series are DOT spec wheels made for the street. They can handle most pot holes without beding and the tires can be removed and replaced on a tire machine.
they are still pretty light.

The E50 series is a BBS motorsport wheel made for racing. They are lighter than the RS series, the centers are magnesium instead of cast aluminum, and the rim halfs are thin gauge heat treated spun aluminum for light weight.

They have to broken down and split to change tires and a tire machine will bend the rim halves if you try that. There is a center ring with two big orings to keep air from leaking out.. hopefully.
I used to have a set on a BMW and used hylomar on the center ring and orings to make a long lasting air seal and it worked. Laquer thinner on a rag wipes off the hylomar easily when splitting them to change tires again.

Maybe some people can succesfully get away with using a tire machine on those rims without bending them. I doubt it, but I don't know.

voitureltd · 05:27 PM

Thanks for the info as i have another street 930, a 77, also built when near new with the early E50 wheels, and 2 others, which are race cars. On those we always split them as they are 12 and 13 inch rears with Magnesium centers. I got lucky then as I recently had a set of new tires installed on another 77 with E50 wheels done with a high tech tire machine ( the upper swing arm is a few cm's above the rim ) and they are still straight. In the future though, I will split them for tire replacement. Thanks for the heads up.

mpetry · mpetry's Garage

Occaisionally you can find RS barrels on Eboy, but be careful - there are a number of different BBS rims out there with 32 or 34 bolt holes, and I'd sure hate to be stuck with $1500 worth of stuff that didn't fit.

Currently no 17" rim halves on offer for the RS wheels.

There's also a guy in Germany who offers BBS wheels (1st-German is his seller handle) might be worth an inquiry.

They are wonderful wheels but you have to be very careful with them, Those dark gray Ronals look good on your silver car. Kind of unusual, very understated.

6300 RPMs · 01-21-2013, 01:10 PM

[QUOTE=voitureltd;7220661]

Quote:

Originally Posted by Richard930

Those aren't RS centres though...

Were the rs centers later? The BBS wheels on the car pictured before were ordered new with the car in 1978 and are 32 bolt centers. A few years ago the original owner bought the later 17 inch wheel halves for a better choice of tires. I also have a 1977 ( pictured ) with the later 32 bolt 8-10 inch BBS wheels but still 16". The fronts were a little close turned lock to lock using stock spacers with Euro rice height. I have since exchanged them for the 16" German Ronnal wheels so they are in storage , PM if interested. I also might replace the 17" wheels and Pirrelli tires on the 78 930 pictured before so they may be available also.

32 bolt? They look like my 34 bolt ones.

voitureltd · 05:43 PM

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.