Built around Diamo's enduro - offroad motorcycle platform, the 2009 Diamo RS 250 features a 250 cc (15.3 cu in) air-cooled single cylinder, four-stroke configuration. In factory specification, peak output is rated at 15.4 HP (11.2 kW) at 7,500 rpm, transferring power to the rear wheel through a 5-speed gearbox and chain final drive. With a specific output of 61.6 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 RS 250 measures 118.8 kg (262 lbs) dry, translating to a power-to-weight ratio of 0.13 HP/kg (7.71 kg per horsepower). Rider ergonomics and chassis geometry center around a 838 mm (33 in) seat height — resulting in a taller command-style riding posture suited to medium-to-tall inseams, combined with a 1,359 mm (53.5 in) wheelbase engineered for quick, flickable steering geometry. The 7.57-liter (2 US gal) fuel tank paired with a rated consumption of 3.22 L/100 km provides an estimated theoretical range of roughly 235 km (146 miles) between fill-ups.
Specific Output
61.6 HP/L
Power-to-Weight
0.13 HP/kg (7.71 kg/HP)
Theoretical Range
~235 km (146 mi)
Engine
Displacement250.0 ccm (15.26 cubic inches)
Engine TypeSingle cylinder, four-stroke
Engine DetailsSingle cylinder, four-stroke
Power15.4 HP (11.2 kW)) @ 7500 RPM
Fuel SystemCarburettor
Fuel ControlOverhead Cams (OHC)
IgnitionCDI
CoolingAir
Transmission
Gearbox5-speed
Final DriveChain (final drive)
Performance
Fuel Consumption3.22 litres/100 km (31.1 km/l or 73.05 mpg)
Greenhouse Gases74.7 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeSteel
Front SuspensionHeavy-duty inverted fork
Rear SuspensionMoncross
Wheelbase1359 mm (53.5 inches)
Ground Clearance254 mm (10.0 inches)
Wheels & Brakes
Front Tyre2.75-21
Rear Tyre4.10-18
Front BrakesSingle disc. ABS
Rear BrakesSingle disc. ABS
Dimensions & Weight
Dry Weight118.8 kg (262.0 pounds)
Power/Weight0.1296 HP/kg
Seat Height838 mm (33.0 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.
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.
