| Engine |
| Type |
Air cooled/Oil cooled twin cylinder |
| Bore x stroke |
87.8 mm x 70.5 mm |
| Displacement |
848 cc |
| Horsepower |
70 Bhp @ 7000 rpm |
| Torque |
57 lb.-ft. @ 5500 rpm |
| Compression Ratio |
10.3:1 |
| Valve Gear |
HC, chain-driven |
| Valves |
2 x 32 mm intake / 2 x 27 mm exhaust |
Valve Timing
Measured at 3 mm valve clearance |
intake opens 10 degrees after TDC
intake closes 36 degrees after BDC
exhaust opens 35 degrees before BDC
exhaust closes 3 degrees before TDC |
| Valves per cylinder |
Four |
| Camshafts |
300 degrees |
| Engine Oil Capacity |
4 quarts of SF, SG motor oil, also w/CC or CD |
| Engine Oil Filter |
spin-on Micronic filter cartridge |
| Carburetion |
fuel injection and electronic ignition MA 2.2 |
| Ignition |
controlled by Bosch Motronic |
| Fuel Demand |
unleaded, middle-grade premium, 89 (AKI) |
| Fuel Tank |
steel tank with enclosed fuel pump and filter |
| Fuel Capacity |
5.5 US gallons including 1 gal. reserve |
| Air Filter |
Paper-type element |
| Charging system |
14 V, 50 Amp Alternator (700W) |
| Battery |
BMW Mareg, 19.5 Amp/h low maintenance |
| Cooling System |
Combined air/oil cooled |
| Drivetrain |
| Primary drive |
Helical-cut gears with tensioner |
| Clutch |
180 mm dry, single plate with diaphram spring |
| Gear Ratios |
1st gear-- 4.16:1
2nd gear-- 2.91:1
3rd gear-- 2.13:1
4th gear-- 1.74:1
5th gear-- 1.45:1 |
| Drive System |
enclosed driveshaft with two universal joints and integral torsional damper |
| Final Drive |
spiral bevel gears, 3.36:1 ratio (37/11) |
| Frame and Suspension |
| Frame |
New 3-section frame concept |
| Front Suspension |
Telelever with central spring strut. Linear-rate coil spring. Twin-tube gas-filled. |
| Travel / Dimensions |
4.68 inches total travel |
| Rear Suspension |
Patented BMW Paralever swingarm and shaft drive, single shock with variable rebound damping |
| Travel / Dimensions |
5.27 inches total travel, 7-position preload |
| Brakes |
| ABS model comes with BMW / FAG anti-lock brake system ABS II |
| Front Brakes |
two 4-piston calipers, wear compensation |
| Front Rotors |
dual 12.0 inch floating rotors |
| Actuation method |
hydraulic, DOT 4 fluid type |
| Rear Brake |
one 4-piston caliper, floating mount |
| Rear Rotor |
single 10.9 inch diameter fixed rotor |
| Actuation method |
hydraulic, DOT 4 fluid type |
| Wheels and Tires |
| Front Wheel |
3.50 x 17 MT-H2, cast alloy, 3-spoke U-profile |
| Rear Wheel |
4.50 x 18 MT-H2, cast alloy, 3-spoke U-profile |
| Front Tire |
120/70 -- ZR 17 tubeless |
| Rear Tire |
160/60 -- ZR 18 tubeless |
| Dimensions |
| Overall Length |
85.68 inches (2197 mm) |
| Overall Width |
35.02 inches (898 mm) (over mirrors) |
| Wheelbase |
57.99 inches (1487 mm) (unladen) |
| Ground Clearance |
5.38 inches (138 mm) (unladen) |
| Seat Height |
29.9 / 30.7 / 31.5 inches (760 / 780 / 800 mm) |
| Handlebar Width |
29.68 inches (761 mm) (with weights) |
| Steering Angle |
64 degrees |
| Front Wheel Trail |
4.68 inches (120 mm) (unladen) |
| Weight -- Dry |
482 lbs. |
| Weight -- Wet |
517 lbs. |
| Maximum Load |
990 lbs. gross vehicle weight rating |
| Wheel load limits |
Front= 396 lbs.
Rear= 660 lbs. |
| Available Colors |
Mystic Red Metallic #689
Ascot Green Metallic #714
Dolphin Blue Metallic #723
Seat Color: Black
Special Edition Colors: Night Black and Aspen Silver Metallic with Black seat |
| Standard Equipment |
| Adjustable seat height (3 positions) |
Single key lock system for ignition, steering, fuel cap, and seat storage compartment locks |
| Integrated ignition and steering lock |
High mounted stainless steel muffler |
| Catalytic converter |
Power acessory socket |
| Hazard warning flashers |
Ajustable front brake lever |
| Handlebar mounted windshield (stock on Special Edition) |
| Advanced ABS II braking system (stock on R850 R ABS) |
