Original idea Jean-Daniel Chambaz                            
nov-03 Excel layout and logic Ser Wijenbergh
  production data       various info               Engine                      Transmission             Electrical       Lights           ignition   Ignition timing       Spark Plug     Cycle           Dimensions                     Valves               Oil                 Carburator                 Rims   Tires              
model year total produced engine numbers frame numbers original price length [mm] width [mm] height [mm] weight [kg] fuel tank capacity [l] fuel consumption top speed [km/hr] interresting info Type Bore*stroke Cylinder capacity Output HP at (rpm) Torque at (rpm) max Rpm Compression Ratio Valves Lubrication type type clutch type number of gears gear selector ratios Rear Axle Drive Solo Rear Axle Drive Side-car generator manufac. volts generator type Battery [V/Ah] front main front city rear brake turn signal instruments ignition system ignition mounted on Idle [deg before TDC] Max advance [deg before TDC] Advance type Ignition max opening manufac type electrode gap Frame type Frame construction Front Suspension Rear Suspension Front Brake Rear Brake L*w*h [mm] Ground clearance [mm] Gas Tank [l] Weight [kg] Max weight solo [kg] Max Weight Side-car [kg] Gas consumption [l/100km] Oil Consumption [l/1000km] Max Speed Solo [km/h] Max Speed Side-car Original price Intake play [mm] Exhaust play [mm] Axial play [mm] Intake opens [deg after TDC] Intake closes [deg after BDC] Exhaust opens [deg before BDC] Exhaust closes [deg before TDC] Cylinderhead bolts torque [kgm] engine [l] with basin [l] type Gearbox [l] type Rear Axle drive [l] type fork [l] type manufac. type passage main nozzle needle needle position idling nozzle idling mixture screw turns weight float front [inches] rear [inches] front [inches] rear [inches] type front pressure solo rear pressure solo front pressure side-car rear pressure side-car  
R 39 1925-1927 900 36000-36900 8000-8900 1870 Mk 2050 800 950 110 2 1:40 100 This 250cc was a race succes in 1925; The factory racer Josef Stelzer became Deutscher Meister in the 250 cc class M40 68*68 247 6,5 4000 ? ? ? 6.0:1 overhead force feed lubrication G 4l dry single plate 3 hand on gastank 13.6-9.3-1.6 1:2.65 na Bosch 6 15W none ? ? ? none none magneto ? ? ? manual ? Bosch W175 ? R 39 bolted double tube steel 4 blade spring rigid 1/2 drum 150mm ? 2050*800*950 ? 10 110 x x 2,5 1-2 100 x 1870 Mk ? ? ? ? ? ? ? ? ? ? ? ? grease ? grease ? ? BMW Spezial 20 ? ? ? ? ? ? 27*3,5 CC I 27*3,5 CC I 27*2.5 or 26*3 27*2.5 or 26*3 balloon ? ? ? ?  
R 2 1931-1936 15288 100-14816 P15000-19260 975 Mk 1950 850 950 110 11 1:36 95 in total 5 different versions produced M67 SId 63*64 198 6 3500 ? ? ? 6.0:1 overhead force feed lubrication G 67 Sl dry single plate 3 hand on gearbox (ball) 1:2.89-1:1.7-1:1 1:6.8 na Bosch 6 30W 7 Ah ? ? ? none none battery / coil ? ? ? manual ? Bosch W175 Tl or 200 G24 ? F 67 S l - V bolted double tube steel 9 blade spring rigid ? ? 1950*850*950 ? 11 110 290 x 3 1-2 95 /100 x 975 Mk ? ? ? ? ? ? ? ? ? 1,5 ? ? ? ? ? ? ? SUM & Amal 74/412 S 19 & 18,2 ? ? ? ? ? ? 25*3 safety rim 25*3 safety rim 25*3 25*3 x ? ? ? ?  
R 3 1936 740 20001-20740 p1001-p1740 950 RM 1980 850 950 149 12,5 1:33 100 frame is the same as 1936 R4 203/1 68*84 305 11 4200 ? ? ? 6.0:1 overhead force feed lubrication 204/5 dry single plate 4 hand on gastank 3.6-2.18-1.35-1 9 to 46 8 to 45 Bosch 6 70W 7 Ah ? ? ? none none battery / coil crank ? ? manual ? Bosch W175 ? 203/1 pressed steel 9 blade spring with friction shockabsorber rigid ? ? 1980*850*950 ? 12 149 349 ? 3 1-2 100 ? 995 RM ? ? ? ? ? ? ? ? ? 1,75 ? ? ? ? ? ? ? SUM CK 3/500 ? ? ? ? ? ? ? 2,5*19 2,5*19 26*3,5 26*3,5 balloon ? ? ? ?  
R 4 1932-1938 15193 80001-95280 P80001-P97700 1150 RM 1980 850 950 137 12 1:28 100 in total 5 different versions produced M69 Sl 84*78 398 12 to 14 4000 ? ? ? 5.7:1 overhead force feed lubrication G 69 dry single plate 4 (first serie had 3) hand on gastank 3.6-2.18-1.35-1 9 to 46 8 to 45 Bosch 6 45W 7 Ah ? ? ? none none battery / coil crank ? ? manual ? Bosch W175 Tl   ? F 69 S 1 - 5 pressed steel 9 blade spring rigid ? ? 1980*850*950 ? 12 137 337 ? 3,5 1-2 100 ? 1150 RM ? ? ? ? ? ? ? ? ? 1,75 ? ? ? ? ? ? ? SUM CK 3/500 Fr ? ? ? ? ? ? ? 26*3,5 26*3,5 26*3,5 26*3,5 SS ? ? ? ?  
R 35 1937-1940 15386 300001-315387 300001-315654 995 RM 2000 800 950 155 12 1:33 100 most produced pre-war machine 235 & M69 72*84 342 14 4200 ? ? ? 6.0:1 overhead force feed lubrication 204/5 dry single plate 4 hand on gastank 3.4-2.18-1.35-1 8 to 45 na Bosch 6 47-70W 7 Ah 6V/35W 6V/35W none none battery / coil crank 0 37 manual ? Bosch or Beru W175 T1 or K175 0,6 235/1 pressed steel telescopic fork rigid 1/2 drum 1/2 drum 2000*800*950 114 12 155 x 3 1-2 100 x 995 RM ? ? ? ? ? ? ? ? ? 1,75 ? ? ? ? ? ? ? SUM CK 9/22 22 ? ? ? ? ? ? 3*19 3*19 3,5*19 3,5*19 x ? ? ? ?  
R 35-2 1945-1951 26000 200001-226000         6 none none   pressed steel telescopic fork       ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?  
R 35-3 (BMW) 1952 8000 226001-234000         6 none none   pressed steel telescopic fork       ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ?  
R 35-3 (EMW) 1952-1956 57899 234001-292000   name changed to EMW (east german Eisenach producyion       6 none none   pressed steel telescopic fork plunger       ? ? ? ? ? ? ? ? ? 2.15*19 2.15*19 ? ? ? ? ? ? ?  
R 20 1937-1938 5000 100001-105004 100001-105029 995 RM 2000 800 920 130 12 1:35 95 first machine with contact points on crank shaft 220/1 60*68 192 8 5400 ? ? ? 6.0:1 overhead force feed lubrication 220/1 dry single plate 3 foot 4.55-2.58-1.64 11 to 46 na Bosch 6 50W 7 Ah ? ? ? none none battery / coil ? ? ? ? ? Bosch or Beru W175 T1 or K175 0,6 220/1 bolted double tube steel telescopic fork rigid 2000*800*920 ? 12 130 330 x 2,75 1-2 95 x 725 RM ? ? ? ? ? ? ? ?   Amal or Bing M 74/428 or AJ 1/20 ? ? ? ? ? ? ? 2,5*19 deep bed 2,5*19 deep bed 3*19 3*19 x ? ? ? ?  
R 23 1938-1941 8021 106001-114021 106001-114203 750 RM 2000 800 920 135 9,6 1:33 90 250cc version of the R20 223/1 68*68 247 10 5400 ? ? ? 6.0:1 overhead force feed lubrication 220/1 dry single plate 3 foot 4.55-2.58-1.64 11 to 46 na Bosch 6 75W 7 Ah ? ? ? none none 6V/2W battery / coil ? ? ? ? ? Bosch or Beru W175 T1 or K175b 0,6 220/1 bolted double tube steel telescopic fork rigid 1/2 drum 160mm 1/2 drum 180mm 2000*800*920 x 9,6 135 335 x 2,75 1-2 95 x 750 RM ? ? ? ? ? ? ? ? ? 1,5 ? ? ? ? ? ? ? Amal or Bing M 74/435 or AJ 1/20 ? ? ? ? ? ? ? 2,5*19 deep bed 2,5*19 deep bed 3*19 3*19 x ? ? x x  
R 24 1949 12020 200001-212007 200001-212007 1750 DM 2020 750 710 130 12 1:28 95 first post-war bike. New 4 gear gearbox 224/1 68*68 247 12 5600 ? ? ? 6.75:1 overhead force feed lubrication 224/1 dry single plate 4 foot+hand 6.1 - 3.0 - 2.04 - 1.54 11:46 or 8:34 na ? 6 45W 7 Ah 6V/25W 6V/25W 5V/21W none none 6V/2W battery / coil crank 3-5 40-43 automatic ? Bosch W225 T1 or W240 T1 0,6 224/1 bolted double tube steel telescopic fork rigid 1/2 drum 160mm 1/2 drum 160mm 2020*750*710 108 12 130 420 x 3,5 1 95 x 1750 DM 0.1-0.15 0.1-0.15 0,05 6 34 34 6 3-3.5 1,25 1,5 SAE30 0,75 SAE10W30 0,125 SAE40 0.15-0.17 SAE30 Bing AJ 1/22/140b or 1/22/27 22 95 2,68 1 40 1-1.5 ? 2,5*19 2,5*19 3*19 3*19 x 1,5 1,6 x x  
R 25 1950-1951 23400 220001-24340 220001-243400 1750 DM 2020 750 710 140 12 1:28 95 improved material as compared to R24 224/1 68*68 247 12 5600 ? ? ? 6.5:1 overhead force feed lubrication 224/2 dry single plate 4 foot+hand 6.1 - 3.0 - 2.04 - 1.54 6 to 27 7 to 36 Noris 6 45-60W 7 Ah 6V/25W 6V/25W 5V/21W none none 6V/2W battery / coil crank 3-5 40-43 automatic ? Bosch W240 T1 or W225 T1 0,6 225/1 welded double tube steel telescopic fork plunger 1/2 drum 160mm 1/2 drum 160mm 2073*750*710 108 12 140 430 505 3,5 1 95 80 1750 DM 0.1-0.15 0.15-0.20 0,05 6 34 34 6 3-3.5 1,25 1,5 SAE30 0,75 SAE10W30 0,125 SAE40 0.15-0.17 SAE30 Bing 1/22/28 22 100 2.64-0.8 1 45 1.25-1.75 ? 3.25*19 3.25*19 3.25*19 3.25*19 x 1,5 1,6 1,5 1,9  
R 25/2 1951-1953 38651 245001-283650 245001-283650 1990 DM 2020 750 710 140 12 1:28 95 same as R25, with small modifications 224/1 68*68 247 13 5800 ? ? ? 6.5:1 overhead force feed lubrication 224/2 dry single plate 4 foot+hand 6.1 - 3.0 - 2.04 - 1.54 6 to 27 7 to 36 Noris 6 45-60W 7 Ah 6V/25W 6V/25W 5V/21W 6V/21W none 6V/2W battery / coil crank 3-5 38.5-41.5 automatic ? Bosch W240 T1 or W225 T1 0,6 225/2 double welded steel tube telescopic fork plunger 1/2 drum 160mm 1/2 drum 160mm 2020*290*730 92 12 142 300 375 2,9 0,7 105 80 1990 DM 0.1-0.15 0.15-0.20 0,05 6 34 34 6 3-3.5 1,25 1,5 SAE40 0,65 SAE40 0,125 SAE90 0.15-0.17 SAE40 Bing or SAWE 1/22/44 or K 22 F 22 110 or 115 1708 or 127 3 or 1 35 1-2.5 11 or 8 3.25*19 3.25*19 3.25*19 3.25*19 x 1,5 1,6 1,5 1,9  
R 25/3 1953-1955 47700 284001-331705 284001-331705 2060 DM 2065 760 730 150 12 1:34 119 most produced 1 cylinder (with exception of R35-3EMW perhaps) 252/1 68*68 247 14 5800 ? ? ? 7.0:1 overhead force feed lubrication 224/2 dry single plate 4 foot 6.1 - 3.0 - 2.04 - 1.54 6 to 25 5 to 34 Noris 6 60-75W 7 Ah 6V/35W 6V/35W 5V/21W 6V/21W none 6V/2W battery / coil crank 7 42 automatic ? Bosch W240 T1 0,6 225/3 double welded steel tube telescopic fork plunger drum 160mm drum 160mm 2065*760*730 105 12 150 320 450 2,9 0,7 119 88 2060 DM 0,15 0,2 0,05 6 34 34 6 3-3.5 1,25 1,5 SAE40 0,65 SAE40 0,125 SAE40 0,13 SAE20 Bing or SAWE 1/24/41 or K24 24 145 1208 2 35 1-2 11 3*18 3*18 3.25*18 3.25*18 x 1,5 1,7 1,5 2  
R 26 1955-1960 30236 340005-370242 340005-370242 2150 DM 2090 660 770 158 15 1:30 128 new frame with Earles front fork and swing rear. Example of german quality product of the 50's 224/5 68*68 247 15 6400 ? ? ? 7.5:1 overhead force feed lubrication 224/3 dry single plate 4 foot 6.1 - 3.0 - 2.04 - 1.54 6 to 25 5 to 26 Noris 6 60-75W 7 Ah 6V/35W 6V/35W 5V/21W 6V/21W 6V/18W 6V/2W battery / coil crank 7 42 automatic 0,35 Bosch W240 T1 0,6 226/1 double welded steel tube earless fork swinging drum 160mm drum 160mm 2090*660*770 x 15 158 325 480 3,3 0,5 128 90 2150 DM 0,15 0,2 0,05 6 34 34 6 3-3.5 1,25 1,5 SAE40 0,65 SAE40 0,125 SAE40 x x Bing 1/26/46, 52 or 55 26 120 1408 3 35 1-2 11 2.15B*18 (steel rims for sidecar use) 2.15B*18 (steel rims for sidecar use) 3.25*18 3.25*18 x 1,5 1,6 1,5 2  
R 27 1960-1967 15364 372001-387364 372001-387364 2430 DM 2090 660 770 162 15 1:25 130 'last' 1 cylinder BMW. Ignition back to timing shaft. Engine in silent blocks 226/2 68*68 247 18 7400 ? ? ? 8.2:1 overhead force feed lubrication 226/2 dry single plate 4 foot 5.33 - 3.02 - 2.04 - 1.54 6 to 25 5 to 26 or 6 to 27 Bosch 6 LJ/CJE 60/6/1800 RS 7 Ah 6V/35W 6V/35W 5V/21W 6V/21W 6V/18W 6V/2W battery / coil camshaft 7 42 automatic ? Bosch or Champion W240 T1 or L85 0,6 226/2 double welded steel tube earless fork swinging drum 160mm drum 160mm 2090*660*770 x 15 162 325 480 3,3 0,5 130 90 2430 DM 0,15 0,2 0,05 4 23 43 16 3-3.5 1,25 1,5 SAE10W30 0,65 SAE10W30 0,125 SAE40 x x Bing 1/26/68, 79, 83 or 93 26 120 1408 4 35 1-2 7 2.15B*18 (steel rims for sidecar use) 2.15B*18 (steel rims for sidecar use) 3.25*18 3.25*18 x 1,5 1,6 1,5 2