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| Specifications |  BMW R 18 RoctaneBMW · 2025 |
|---|---|
| Engine | |
DisplacementGreater displacement does not necessarily mean better performance. | 1,802cc1,802 cc |
Maximum torqueMore torque. Engine speed and gearing also affect pulling power. | 162.7Nm120 lb-ft at 3,000 rpm |
Rated power | 91hp91 hp at 4,750 rpm |
Bore × stroke | 107.1 mm x 100 mm |
Compression ratio | 9.6 : 1 |
| Chassis, brakes and suspension | |
Anti-lock braking (ABS)ABS status for this variant. “—” means data is unavailable. | YesBMW Motorrad Integral ABS (partial integral) |
Frame | Double loop steel frame with bolted beams |
Steering angle | 55.3° |
Wheels | Aluminum cast wheels |
| Other declared specifications | |
Emission control | Closed-loop 3-way catalytic converter |
Type | Air/oil cooled twin-cylinder four-stroke boxer engine with two chain-driven camshafts above the crank shaft |
Mixture control | Electronic intake pipe injection / digital engine management system: BMS-O with throttle-by-wire |
Maximum speed | over 112 mph |
Fuel type | Super unleaded (max. 15% ethanol, E15), 95 ROZ/RON, 90 AKI |
Alternator | Permanent magnet alternator with 600 W (nominal power) |
Front wheel location / suspension | Telescopic fork, diameter 49 mm |
Rear wheel location / suspension | Steel twin-sided swing arm, central spring strut |
Suspension travel, front / rear | 4.7" / 3.5" |
Castor | 7.28" |
Rim, front | 3.50 x 21" |
Rim, rear | 5.00 x 18'' |
Tire, front | 120/70 B21 |
Tire, rear | 180/55 B18 |
Brake, front | Twin disc brake, diameter 300 mm, 4-piston fixed caliper |
Brake, rear | Single disc brake, diameter 300 mm, 4-piston fixed caliper |
Drive | Cardan shaft drive |
Seat height at unladen weight | 28.3" |
Inner leg curve at unladen weight | 65.9" |
Usable tank volume | approx. 4.2 gal |
Reserve | approx. 1 gal |
Unladen weight, road ready, fully fueled | 825 lbs 1) |
Permitted total weight | 1,234 lbs |
Payload (with standard equipment) | 399 lbs |
| Equipment | |
battery | 12 V / 26 Ah |
| Dimensions and weight | |
Wheelbase (as stated in source) | 67.7" |
Length (as stated in source) | 103" (over license plate holder) |
Width (as stated in source) | 38.7" (above mirror) |
| Fuel and transmission | |
clutch | Single-disc dry clutch |
Transmission | Constant-mesh 6-gear gearbox with separate transmission housing |
| Data source | Specification source |
| BMW R 18 Roctane |
|---|
Engine |
DisplacementGreater displacement does not necessarily mean better performance. |
1,802cc1,802 cc |
Maximum torqueMore torque. Engine speed and gearing also affect pulling power. |
162.7Nm120 lb-ft at 3,000 rpm |
Rated power |
91hp91 hp at 4,750 rpm |
Bore × stroke |
| 107.1 mm x 100 mm |
Compression ratio |
| 9.6 : 1 |
Chassis, brakes and suspension |
Anti-lock braking (ABS)ABS status for this variant. “—” means data is unavailable. |
YesBMW Motorrad Integral ABS (partial integral) |
Frame |
| Double loop steel frame with bolted beams |
Steering angle |
| 55.3° |
Wheels |
| Aluminum cast wheels |
Other declared specifications |
Emission control |
| Closed-loop 3-way catalytic converter |
Type |
| Air/oil cooled twin-cylinder four-stroke boxer engine with two chain-driven camshafts above the crank shaft |
Mixture control |
| Electronic intake pipe injection / digital engine management system: BMS-O with throttle-by-wire |
Maximum speed |
| over 112 mph |
Fuel type |
| Super unleaded (max. 15% ethanol, E15), 95 ROZ/RON, 90 AKI |
Alternator |
| Permanent magnet alternator with 600 W (nominal power) |
Front wheel location / suspension |
| Telescopic fork, diameter 49 mm |
Rear wheel location / suspension |
| Steel twin-sided swing arm, central spring strut |
Suspension travel, front / rear |
| 4.7" / 3.5" |
Castor |
| 7.28" |
Rim, front |
| 3.50 x 21" |
Rim, rear |
| 5.00 x 18'' |
Tire, front |
| 120/70 B21 |
Tire, rear |
| 180/55 B18 |
Brake, front |
| Twin disc brake, diameter 300 mm, 4-piston fixed caliper |
Brake, rear |
| Single disc brake, diameter 300 mm, 4-piston fixed caliper |
Drive |
| Cardan shaft drive |
Seat height at unladen weight |
| 28.3" |
Inner leg curve at unladen weight |
| 65.9" |
Usable tank volume |
| approx. 4.2 gal |
Reserve |
| approx. 1 gal |
Unladen weight, road ready, fully fueled |
| 825 lbs 1) |
Permitted total weight |
| 1,234 lbs |
Payload (with standard equipment) |
| 399 lbs |
Equipment |
battery |
| 12 V / 26 Ah |
Dimensions and weight |
Wheelbase (as stated in source) |
| 67.7" |
Length (as stated in source) |
| 103" (over license plate holder) |
Width (as stated in source) |
| 38.7" (above mirror) |
Fuel and transmission |
clutch |
| Single-disc dry clutch |
Transmission |
| Constant-mesh 6-gear gearbox with separate transmission housing |
Data source |
| Specification source |
Green marks an advantage in that specification. “—” means data is unavailable.