That's a monolever frame R65, so with the exception of the engine itself, it is the same as the R80 monolever from the same year - including the final drive ratio..
BMWs in my garage: 1982 R65LS, 1978 R100/7
I have only had three airheads, so my sample is small. 84 R100, 83 R80ST and this R65 mono... but as far as motors are concerned this 650 is the smoothest out of the lot. The only drawback is that it runs out of steam on the highway.. But she is a real sweetheart... The 650 motor sips gas so the range is quite nice.
I love your R65. There is something very appealing to me about the monolever R65 and R80's. Probably the fact I like that 60 years of airhead boxer refinement is found in them coupled w/ my belief that the 650 to 800cc boxer motor is the perfect size!
Thanks for the R65 pic, the bike that inspired me to paint my R80 wheels black (then the 80 was promptly stolen by my wife)!
my 1993 R100RS- last of the RS Airhead series, limited production, one of 38 imported (apparently)
Too many nice looking old airheads. I need to stop looking at these or build a bigger garage.
'04 R1150RT, '97 1100GS, '99 DR350, '02 DR650, '03 DR650
Purchased new in October 1973 from Bob Wyckoff, Sport Spot, North Haledon, NJ- Wixom fairing and bags, restoration by Chris Harris, Manchester, NH. Currently 14,000 miles on bike - now ride in seacoast area of NH.
Forgot to mention that Chris Harris operates Affordable Beemer Services in Manchester, NH