Post by dgb (David)For those who have never seen the image:-
https://i.ibb.co/RcVFxVb/Screenshot-2024-03-12-at-23-23-14.jpg
It looks like a 1977-84 BMW R100RS twinshock and solo seat but I've not
seen those wheels before? They are generally either std wired (spoked)
or alloy (snowflake), till they went to the monolever style ally wheels
85 on. The rocker covers look like they might be flat top making it the
later end of the range.
Like most BMW motorbikes it's shaft drive and sports the 'airhead' boxer
flat twin engine and unusually for a motorbike, an in-line dry single
plate clutch (like in a rwd car).
Should be good for 125mph and would return 50+ mpg when touring (not bad
for a carburetted 1000cc motorbike).
A real plus in use, especially when manoeuvring by hand is they were
also quite light (for the cc) and with the flat twin engine, a pretty
low centre of gravity.
Cheers, T i m