Paging them what know about Beemers...

1977 R100RS
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=260179503169

What's it worth?

Anyone near Uttoxeter fancy having a look at it for me?

 

Looks like a real bitsa to me; *if* it's a real "RS" it's had a
replacement gearbox at some point, the side panel stickers are wrong,
it's been re-sprayed, the panniers aren't original, etc. etc.

 

It may be a dressed-up 'cooking' BMW. It's got the RS badges on the
engine, but not on the panels.

It's missing the lowers to the fairing.

One way to check would be to look at the rear drive box - should be
stamped 32/11, I think. Actually, IIRC, 33/11 or 32/11 could be
specified. And see if the ignition switch is still on the left-hand
side of the headstock. RSs carry them on the dash, although it's easy
to convert.

To be honest, I'd give this one a miss, I really would.

 

(Bad form post)

Another thing is that the registration date is really, really early,
and I don't think BMW did the RS in that colour scheme at the time.

Timo will be along in a minute, but I stress: avoid, avoid, avoid.

 

TOG@toil,, <>
wrote in

a sale 6 weeks after the MOT expired should ring enough alarm bells,
despite the comment about putting another 12 months on

 

TOG@toil wrote:

Yeah, I got that impression. I was really only after a winter hack
rather than a "classic", but it doesn't sound like it's suitable for either.

Back to eBay we go, then...

 

I see it looks cheap but don't buy a very early RS with the swinging ATE
type callipers.
If you must buy a pre Mono get the intermediate edition with Brembo brakes.
Better brakes and better general components.

 

<igor mode>
You rang?
</im>

As everybody else said, this looks more like a converted normal BMW
than anything else, and it's pointless having an RS if half the fairing
is missing. Unless you want to freeze off your toes and lower legs if
you're using the thing as a winter hack.

Actually, the whole thing looks like it's been cobbled together from
various BMWs - have a look at the front mudguard mounting and compare
it to the way they're mounted on the RSs on this page:

http://www.bmbikes.co.uk/photopages/photosr100rs.htm

Actually, it does seem to match the '78 Belgian Plodmobile on that
page, which would probably make it even worse if it turns out to be
ex-plod.

Kickstart RSs do seem to be very rare but they do exist - and I don't
think it's because someone stuck a different gearbox in. I *think* it
may have been an option back then. Doesn't matter much as long as it's
a /7 gearbox as the ratios are the same AFAIK, only the bevel drive
ratio varies. And of course you'd want the correct speedo for the rear
drive ratio. *Especially* if it's been converted and someone stuck an
RS or S rear drive on and used a non RS/S speedo. But your friendly
neighbourhood plod will tell you about this very quickly.

Panniers look like Krausers or Krauser-compatible ones, but they're not
correct for the bike.

Brake lines look bodged on, too - AFAIK the lower half is usually a
solid line and only the top is flexible. Again, check the photos on the
page above.

Something about this thing smells worse than Billingsgate Fish Market
on an off day.

 

Timo Geusch wrote:

Who'd have thought that buying a winter hack would be so fraught with
possible pitfalls, eh?

Or perhaps I'm just too picky.

Anyway, thanks for the advice.

 

Check the bars - more like a 100/7. And the RS had a steering damper, which
that one doesn't seem to have.

 

I don't think so. Buying a dodgy BMW can be a very, very expensive
exercise. Conversely, a good one can be a brilliant cheap hack. Cheap
to run, cheap to insure, and if you're lucky, cheap to buy.

Heh. Once again, ukrm actually manages to impart some useful advice....

 

Indeed, and that thing looks like a headache on wheels.

We have to stop doing that before we ruin the place.

 

Well here we go!
The 77 RS could have sidepanel badges with R100 RS or 1000cc.
we only see one side so it could have lost an S or a T

Lots of people take the lowers off. Then again it could be an RT with an RS
top half and bars.

AFAIK BMW only did the RS in green as a police paint job. The RT came in
green 1978 and on.

That's because it's an Ultimate Source fork brace/mount

Which it probably is if it was always an RS and green

Early RS could be had with a (useless) kickstart.
Useless with a flat battery in the rain on a tired bike that is.

They look about right to me.

This has the master cylinder under the tank. Goodridge conversions often go
from the caliper, replacing the solid line, the routing lookis right though.

It's a dog sure enough and never was a good bike. My particular hate is the
shimmed taper roller wheel bearings. Then the front calipers and discs.
Followed by the diabolical front forks. The lack of top yoke. The shimmed
gearbox end float.... oh I could go on but I won't.

 

If you're thinking of a German police paintjob, it's the wrong green.
For starters, German police paintjob are plain colour.

OK, fair enough.

Hmm. No BMW badges for starters...

Fair enough.

 

I wasn't suggesting which because the colour reproduction in the picture is
so uncertain.

If it *is* a '77 it isn't an RT.

I have seen early 100 airheads with OE plain black sidepanels though.

Oh the fuckers fall off all the time. Were there indents for badges on
those? can't recall.