Allround · 1903
2.25 hp
MotoLibrary Score
32 /100 Commuter
Power
2 HP
Engine
249 ccm
Technical Overview
1903 Ariel 2.25 hp Technical Analysis & Specification Breakdown
Built around Ariel's allround motorcycle platform, the 1903 Ariel 2.25 hp utilizes a 249 cc (15.2 cu in) air-cooled single cylinder, four-stroke layout. In factory specification, peak output is rated at 2.3 HP (1.6 kW), transferring power to the rear wheel through belt final drive. With a specific output of 9.2 HP per liter, the engine character is prioritizing low-RPM tractability, mechanical longevity and relaxed throttle response over peak redline numbers.
Specific Output
9.2 HP/L
Engine
Displacement 249.0 ccm (15.19 cubic inches)
Engine Type Single cylinder, four-stroke
Engine Details Sidevalve
Power 2.3 HP (1.6 kW))
Fuel System Carburettor
Ignition Magneto ignition
Cooling Air
Transmission
Final Drive Belt (final drive)
Wheels & Brakes
Front Brakes Expanding brake (drum brake)
Wheels Wire spoked
Other
Starter Kick
More from Ariel
Rider Profile
Who Is This Bike For?
🟢
Beginner
A2 license compatible, manageable power.
🌍
Best For
All-Round & Adventure
Estimate
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