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Details of this model are a
little sketchy - BMW themselves do not list it and the chassis numbers
used do not appear on the Parts CD. I understand that around 180 were
sold in the US during 1990/91 but am not aware of this model being
marketed anywhere else in the world - if you have information, please
let me know. A copy of the BMW US Sales Brochure is shown at the bottom
of the page. Thanks to Rob James and Richard Munoz for the information.
Apparently this machines is referred to as an R100 Classic and the
handbook supplied was for the R100RT. I have been informed by Marc Jan
Compagner that this model was also sold in Japan. I now have what appear
to be confirmation that this model was also sold in Japan as one has
been spotted in an on-line auction there by Jeff Birtwistle.
The information that I have is that Chassis Numbers ran from
6419001-6419181. |
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Start of Production |
1990? |
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End of Production |
1991? |
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Numbers Produced |
?? |
| Price |
?? |
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Engine |
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|
Motor Type |
Four-stroke two cylinder
horizontally opposed "Boxer" engine, air cooled |
|
Bore x Stroke |
94 x 70.6 mm (3.70 x 2.78 in) |
|
Displacement |
980 cc |
|
Max Power |
60 hp (44 KW) at 6,500 rpm |
|
Max Torque |
74 Nm (58 ft lbs) at 3,500
rpm |
|
Compression Ratio |
8.45 : 1 |
|
Valves Per Cylinder |
2 |
|
Valve Control |
OHV, using push rod and
rocker arm |
|
Valves |
42mm intake / 40mm exhaust |
|
Valve Timing |
(Measured at 2mm valve
clearance). intake opens 16 before TDC, closes 44 before BDC; exhaust
opens 56 before BDC, closes 4 after TDC |
|
Carburation System |
2 32mm Bing CV Carbs |
|
Engine Lubricating System |
Wet sump |
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Power Transmission |
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|
Clutch |
Dry single plate, with lever
action diaphragm spring |
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Number of Gears |
5 |
|
Gear Selection |
Dog type gearbox (ratchet
foot lever) |
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Gearbox Ratios |
4.4 / 2.86 / 2.07 / 1.67 /
1.50 |
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Rear Wheel Ratio |
1 : 3.00 |
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Bevel/Crownwheel |
11 / 33 teeth |
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Electrical System |
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Ignition System |
Contact free electronic
ignition (Bosch) |
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Alternator |
Bosch 240 W, 14V |
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Starter |
Bosch 0.7 Kw |
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Battery |
12V, 25 ah battery |
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Chassis |
|
|
Type of Frame |
Double loop tubular frame
with bolt on rear section |
|
Front wheel suspension |
Telescopic fork with
hydraulic shock absorber, 38.5mm stanchion tube diameter |
|
Rear wheel suspension |
BMW Monolever swinging arm
with single gas filled shock, 4.8 in travel |
|
Spring Travel Front/Rear |
175 / 121 mm (6.88 x 4.76 in) |
|
Wheel Rims, Front |
MTH2 2.50 x 18 E cast alloy |
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Wheel Rims, Rear |
MTH2 2.50 x 18 E cast alloy |
|
Tyres, Front |
90/90H x 18 tubeless |
|
Tyres, Rear |
120/90H x 18 tubelss |
|
Brakes, Front |
Dual disc brake 285 mm /
11.22 in diameter. Brembo 2 piston caliper |
|
Brakes, Rear |
Simplex drum brake 200 mm /
7.87 in diameter |
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Dimensions/Weights |
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|
Length x Width x Height |
2175 x 800 x 1447 mm (85.6 x
31.5 x 57 in) |
|
Wheel Base |
1447 mm / 56.96 in |
|
Fuel Tank Capacity |
22 litres / 4.83 gal / 5.81
gal US |
|
Unladen Weight |
419 lbs dry; 485 lbs wet |
|
Max. Permissible Weight |
970 lbs |
|
Seat Height (Unladen) |
807 mm (31.8 inches) |
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