2021 Brough Superior Lawrence Technical Analysis & Specification Breakdown
At the heart of the 2021 Brough Superior Lawrence sport motorcycle, Brough Superior pairs a 997 cc (60.8 cu in) oil & air-cooled v2, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 100.6 HP (73.4 kW) at 9,600 rpm while maximum torque reaches 87 Nm (64.2 lb-ft) at 7,300 rpm, transferring power to the rear wheel through a 6-speed gearbox and chain final drive. With a specific output of 100.9 HP per liter and a 2,300 rpm working window between peak torque (7,300 rpm) and peak power (9,600 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.
On the scales, the Lawrence measures 200 kg (441 lbs) dry, translating to a power-to-weight ratio of 0.5 HP/kg (1.99 kg per horsepower). The 17-liter (4.5 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Within MotoLibrary's Brough Superior archive, this model family spans 3 indexed model years from 2021 to 2023, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Specific Output
100.9 HP/L
Power-to-Weight
0.5 HP/kg (1.99 kg/HP)
Power Band Window
7,300–9,600 rpm
Engine
Displacement997.0 ccm (60.84 cubic inches)
Engine TypeV2, four-stroke
Power100.6 HP (73.4 kW)) @ 9600 RPM
Torque87.0 Nm (8.9 kgf-m or 64.2 ft.lbs) @ 7300 RPM
Bore x Stroke94.0 x 71.8 mm (3.7 x 2.8 inches)
Valves/Cylinder4
Fuel SystemTurbo
Fuel ControlDouble Overhead Cams/Twin Cam (DOHC)
IgnitionECU
LubricationSemi-dry crankcase lubrication
CoolingOil & air
Transmission
Gearbox6-speed
Final DriveChain (final drive)
ClutchMultiplate oil-bath clutch with hydraulic operation
Performance
Emission DetailsEuro 4
Chassis
Frame TypeMachined Titanium frame with Titanium subframe and triangles
Rake24.6°
Trail108 mm (4.3 inches)
Front SuspensionFior-type Aluminium casting fork with twin articulated triangular Titanium links and Preload and rebound adjustable mono-shock
Front Travel130 mm (5.1 inches)
Rear SuspensionCast aluminium swingarm pivoting in engine crankcases, with monoshock adjustable for preload and rebound damping and progressive rate link
Rear Travel124 mm (4.9 inches)
Wheels & Brakes
Front Tyre120/70-19
Rear Tyre200/55-17
Front BrakesDouble disc. Stainless Steel discs with 2 x four-piston radial callipers
Front Brake Ø320 mm (12.6 inches)
Rear BrakesSingle disc. Stainless Steel disc with 1 x two-piston caliper
Use this page to compare this motorcycle by its real specifications, not only by model name. Focus on the details that affect fit, comfort, handling, range and ownership.
Power
Compare engine output with similar motorcycles if acceleration, highway use or two-up riding matters.
Torque
Torque is useful for judging real-world pull, especially for touring, commuting and loaded riding.
Weight
Compare weight carefully because it affects low-speed handling, parking and confidence.
Fuel Capacity
Fuel capacity helps estimate touring range and how often you may need to stop.
Brakes
Brake setup is worth comparing if you ride in traffic, mountains or with a passenger.
Suspension
Suspension details can matter for comfort, road feel and long-distance riding.
Transmission
Transmission and final drive affect maintenance, smoothness and everyday usability.
