kudzu wrote:The first time .. "roadster" .. applied to a motorcycle was .. R100R, back in the early nineties.
That's about right. The naked R100R re-appeared after BMW brought back the R100RT and R100RS at the end of the eighties - the flying brick (K100, K1100 etc) was a great bike (I had two) but the traditionalists wailed. Finally, BMW listened and re-launched the R100 in monoshock form
What follows is partly supposition on my part, but ...
I'll bet BMW had a large stockpile of airhead boxer engines in the nineties, and after the launch of the first oilhead (R110RS in 1993) had limited frame options to put 'em in - really only R100RT, R100GS and the various naked R100 versions. I can't recall when the last R100RS were made, but I think it was 1992 to make way for the R1100RS.
BMW put together a series of 'styled' naked R100 bikes - remember the R100R "Mystic"? The purple one was a doozey and the jade green was more so! (this one's red)
http://www.bmbikes.co.uk/specpages/R100Rmystic.htm
Over here, the R100R designated "Roadster" was applied to the R100R a bit after it started sales as the plain black / grey R100R in 1991 - I think about 1993
http://www.bmbikes.co.uk/specpages/R100R.htm
The 1000cc naked airhead seems to have had three designations - R100 (1990-91), R100R (1993-95?) and R100RR As I recall, the 'roadster' moniker was applied to both the R100R and the R100RR here, as was 'mystic'. My Link to Phil hawes site has just broken, so I can't check whether the R100, R100R and R100RR had identical specs. It used to be that the GS had the hisghest state of tune (go figure), with 43mm Bings vs the 41mm ones on RTs ...
Now, I
am certain that BMW made its last R80 airhead in about 1991 yet had enough engines to make up bikes until 1995 - I've seen some BIG dispartities between build plates and compliance plates on R80 monos sold after 1992. I'm guessing the same thing happened with the R100, a little later. Remeber, BMW actually claimed that the GS would
stay an airhead befroe the R1100GS appeared.
My guess is BMW marketing needed some model differentiation to shift the remaining stock of R100 production, and hence we got 'Roadster' with all its retro connotations ... 'Mystic'? Crikey, that was before Chris Robb!