Technical specifications for the 1975 BMW R90/6.

Introduced in September 1973, BMW's R90S featured a tuned version of the 60hp R90/5, producing 67hp thanks to higher compression and Dell'Orto carbs. As the first truly sporting BMW it was a milestone model for a company generally known for sedate touring machines. Produced through 1976, it remains one of the most collectible BMWs of all time.

Desireable and rare, BMW's R69US was built to be ridden. John Landstrom's Granada Red 1969 proves the point.

Desireable and rare, BMW's R69US was built to be ridden. John Landstrom's Granada Red 1969 proves the point.

Desireable and rare, BMW's R69US was built to be ridden. John Landstrom's Granada Red 1969 proves the point.

1997 BMW F650ST Single 652 100 x 83 DOHC 4 Shim & bucket 9.7:1 Dual Mikuni BST 33 B316 CV Twin plug CDI n/a n/a n/a 520 O-ring chain n/a 280 12V 12AH 41mm Showa forks 6.7" travel Single shock, 4.7" travel 100/90-18 130/80-17 Single 11.8" disc

1996 BMW R850R Flat opposed twin 848 87.8 x 70.5 SIHC 4 Threaded 10.3:1 Bosch Motronic fuel injection Bosch Motronic electronic n/a n/a 5 BMW Paralever n/a n/a 12V 19.5AH BMW Telelever, 4.68" travel BMW Paralever, 5.27" travel 120/70-17 160/60-18

1996 BMW R1100RT Flat opposed twin 1085 99 x 70.5 DOHC 4 Screw and locknut 10.7:1 Bosch Motronic fuel injection Bosch Motronic controlled n/a n/a 5 Shaft 2.91:1 2 subframes w engine & gearbox as stressed members 700 12V 19.5AH BMW Telelever, single shock

1996 BMW K100RS Inline flat four 987 67 x 70 DOHC 4 n/a 11:1 Bosch Motronic digital FI Bosch DME n/a n/a 5 Shaft Tubular steel space frame, engine as stressed member 460 12V 24AH Marzocchi telescopic fork Single shock 120/70-17 160/60-18 Dual 12"

1995 BMW R1100R Opposed twin 1085 99 x 70.5 SIHC 4 Threaded 10.3:1 Fuel Injected Bosch Motronic controlled Electric n/a 5 Shaft 3.00:1 2 subframes w engine & gearbox as stressed members 700 12V 19.5AH BMW Telelever 35mm stanchions and single shock Sing

1995 BMW R1100GS Flat opposed twin 1085 99 x 70.5 SIHC 4 Threaded 10.3:1 Fuel injected Digitally mapped with throttle sensor n/a n/a 5 Shaft 3.00:1 Dual subframes w/ engine, gearbox stressed members 700 12V 19.5AH Telelever w/central spring strut and 35mm sta

1995 BMW R100RS Opposed twin 980 94 x 70.6 OHV 2 Threaded 8.5:1 Dual 32mm Bing CV Battery-powered, inductive, magnetically triggered n/a n/a 5 Shaft Double downtube, full cradle, tubular steel 280 12V 30AH 38.5mm Fitchel & Sachs, 6.9" travel Boge singl

1995 BMW K100RS Inline flat four 987 67 x 70 DOHC 4 n/a 11:1 Bosch Motronic digital FI Bosch DME n/a n/a 5 Shaft Tubular steel space frame, engine as stressed member 460 12V 24AH Marzocchi telescopic fork Single shock 120/70-17 160/60-18 Dual 12"

1994 BMW R1100RS Flat opposed twin 1085 99 x 70.5 SIHC 4 n/a 10.7:1 Bosch Motronic fuel injection Bosch Motronic controlled n/a n/a 5 Shaft 3.09:1 2 subframes w engine & gearbox as stressed members 700 12V 19.5AH BMW Telelever 35mm Stanchions Single sh

1993 BMW K100RS Inline flat four 987 67 x 70 DOHC 4 n/a 11:1 Bosch Motronic digital FI Bosch DME n/a n/a 5 Shaft Tubular steel space frame, engine as stressed member 460 12V 24AH Marzocchi telescopic fork Single shock 120/70-17 160/60-18 Dual 12"

1990 BMW K75RT Longitudinal three 740 67 x 70 DOHC 2 n/a 10.5:1 Bosch Jetronic fuel injection Bosch Electronic n/a n/a 5 Shaft n/a 460 12v 20AH Telescopic fork 7.3" travel Monolever single swingarm 4.5" travel 100/90-18 130/90-17 Dual 285mm discs

1984 BMW R80RT Opposed twin 797.5 84 x 70.6 OHV 2 Threaded 8.2:1 Dual 32mm Bing n/a Electric n/a 5 Shaft Double downtube, full cradle 280 12V 20AH Center axle fork 36mm tubes 6.9" travel Gas charged shock 4.8" travel 90/90-18 120/90-18 Dual disc h

1984 BMW R100RS Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Battery, points Electric n/a 5 Shaft/bevel gears Double downtube, full cradle, single backbone 240 12V 25AH Telescopic fork Swing arm 3.25-19 4.00-18 Dual 10.125 x 1.36

1984 BMW K100RS Inline four 987.20000000000005 67 x 70 DOHC n/a n/a 10.2:1 Bosch Jetronic fuel injection Transistorized breakerless n/a n/a 5 Shaft Tubular steel, double front downtube 460 12V 20AH Telescopic fork 7.3" travel Single shock swingarm 4.7" tra

1982 BMW R80GS Opposed twin 797.5 84.8 x 70.6 OHV n/a n/a 8.2:1 Dual 32mm Bing CV Transistor, breakerless Electric n/a 5 Shaft Tubular steel, double front downtube 280 12V 12AH 36mm stanchion tube 3-way adjustable preload 3.00-21 4.00-18 Dual 10.2

1982 BMW R65LS Horizontal twin 650 82 x 61.5 n/a 2 n/a 8.2:1 Dual 32mm Bing CV Electronic Electric n/a 5 Shaft n/a 280 12V 16AH Telescopic fork 6.9" travel Swing axle 4.3" travel 3.25-18 4.00-18 Dual 10.25" discs Single 8.7" drum 55.39999999

1982 BMW R100RS Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Battery, points Electric n/a 5 Shaft/bevel gears Double downtube, full cradle, single backbone 240 12V 25AH Telescopic fork Swing arm 3.25-19 4.00-18 Dual 10.125 x 1.36

1981 BMW R100RS Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Battery, points Electric n/a 5 Shaft/bevel gears Double downtube, full cradle, single backbone 240 12V 25AH Telescopic fork Swing arm 3.25-19 4.00-18 Dual 10.125 x 1.36

1981 BMW R100 Opposed twin 980 94 x 70.6 OHV n/a n/a 8.2:1 Dual 40mm Bing CV Electronic, transistorized Electric n/a 5 Shaft n/a 280 12V 28AH Telescopic fork, 8" travel Swing arm 4.9" travel 3.25-19 n/a Dual 10.125" hydraulic discs 7.8" drum

1980 BMW R100RS Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Battery, points Electric n/a 5 Shaft/bevel gears Double downtube, full cradle, single backbone 240 12V 25AH Telescopic fork Swing arm 3.25-19 4.00-18 Dual 10.125 x 1.36

1979 BMW R100RS Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Battery, points Electric n/a 5 Shaft/bevel gears Double downtube, full cradle, single backbone 240 12V 25AH Telescopic fork Swing arm 3.25-19 4.00-18 Dual 10.125 x 1.36

1978 BMW R80/7 Opposed twin 797.39999999999998 84.8 x 70.6 OHV n/a n/a 9.2:1 Dual 32mm Bing CV Battery/points Electric n/a 5 Shaft/bevel gears n/a 280 n/a Telescopic fork Swing arm 3.25-19 4.00-18 10.3" disc 7.9" drum 57.700000000000003 n

1978 BMW R100RS Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Battery, points Electric n/a 5 Shaft/bevel gears Double downtube, full cradle, single backbone 240 12V 25AH Telescopic fork Swing arm 3.25-19 4.00-18 Dual 10.125 x 1.36

1976 BMW R100S Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Battery, points Electric n/a 5 Shaft/bevel gears Double downtube, full cradle 240 12V 28AH Telescopic fork Swing arm 3.25-19 4.00-18 Single hydraulic 10.2" disc Dual

1976 BMW R100RS Opposed twin 980 94 x 70.6 OHV n/a n/a 9.5:1 Dual 40mm Bing CV Coil and Battery Electric n/a 5 Shaft/bevel gears n/a n/a n/a Telescopic fork Swing arm 3.25-19 4.00-18 n/a n/a 57.5 n/a n/a n/a n/a n/a n/a

1975 BMW R75/6 Opposed twin 745 82 x 70.6 OHV n/a n/a 9.0:1 Dual 32mm Bing CV Battery and coil Electric n/a 5 Driveshaft tubular steel double cradle 280 12V 25AH Telescopic fork Swing arm 3.25S-19 4.00S-18 Single action 260mm perforated disc Ro

1975 BMW R60/5 Opposed twin 599 73.5 x 70.6 n/a n/a n/a 9.2:1 Dual 26mm Bing concentric Coil and Battery Electric, Kick n/a 5 Shaft/bevel gears n/a n/a 12V 25AH Telescopic fork Swing arm 3.25 S-19 4.00 S-18 Single hyraulic disc Single drum 5

1973 BMW R60 5 Horizontally opposed twin 599cc 73.5mm (2.89") 70.6mm (2.77") OHV, push rod & rocker 2 Mechanical 9.2 1 Dual Bing type 53 slide Battery, single breaker, dual coil Bosch

1972 BMW R60 5 Horizontally opposed twin 599cc 73.5mm (2.89") 70.6mm (2.77") OHV, push rod & rocker 2 mechanical 9.2 1 Dual Bing type 53 slide Battery, single breaker, dual coil

1970 BMW R60 5 Horizontally opposed twin (boxer) 599cc 73.5mm (2.89") 70.6mm (2.77") OHV, push rod & rocker 2 Mechanical 9.2 1 Dual Bing type 53 slide Battery, single breaker, dual coil

1970 BMW R75/5 Opposed twin 745 82 x 70.6 OHV n/a n/a 9.0:1 Dual 32mm Bing CV Battery and coil Electric, kick n/a 4 Shaft/bevel gears n/a n/a 12V 15AH Telescopic fork Swing arm 3.25-19 4.00-18 7.9" x 1.2" drum 7.9" x 1.2" drum 54.5 n/a

1970 BMW R60 5 Horizontally opposed twin (boxer) 599cc 73.5mm (2.89") 70.6mm (2.77") OHV, push rod & rocker 2 mechanical 9.2 1 Dual Bing type 53 slide Battery, single breaker,