At the heart of the 2016 Mash Roadstar classic motorcycle, Mash pairs a 390 cc (23.8 cu in) air-cooled single cylinder, four-stroke architecture with road-focused gearing. In factory specification, peak output is rated at 29 HP (21.2 kW), transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 74.4 HP per liter, the engine character is indicating a tractable, stress-free state of tune focused on everyday usability and broad torque delivery.
On the scales, the Roadstar measures 151 kg (333 lbs) wet (curb), translating to a power-to-weight ratio of 0.19 HP/kg (5.21 kg per horsepower). Rider ergonomics and chassis geometry center around a 780 mm (30.7 in) seat height — offering a neutral standover height that accommodates most average-inseam riders without sacrificing cornering clearance. The 13-liter (3.4 US gal) fuel tank supports practical everyday commuting and weekend road stints.
Specific Output
74.4 HP/L
Power-to-Weight
0.19 HP/kg (5.21 kg/HP)
Standover Height
780 mm (30.7 in)
Engine
Displacement390.0 ccm (23.80 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power29.0 HP (21.2 kW))
Valves/Cylinder4
Fuel SystemInjection. Siemens
Fuel ControlSingle Overhead Cams (SOHC)
LubricationDry sump
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Chassis
Front SuspensionTelescopic Forks
Rear SuspensionTwin Shocks with Adjustable Pre-Load
Wheels & Brakes
Front BrakesSingle disc
Rear BrakesExpanding brake (drum brake)
Dimensions & Weight
Weight incl.151.0 kg (332.9 pounds)
Seat Height780 mm (30.7 inches) If adjustable, lowest setting.
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.
Seat Height
Check the seat height against your inseam and riding posture before choosing a motorcycle.
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.
