Allround · 1961
Commodore 250
Technical Overview
1961 James Commodore 250 Technical Analysis & Specification Breakdown
At the heart of the 1961 James Commodore 250 allround motorcycle, James utilizes a 249 cc (15.2 cu in) air-cooled single cylinder, two-stroke layout. Internal engine geometry specifies a bore and stroke of 66.0 x 73.0 mm (2.6 x 2.9 inches).
Within MotoLibrary's James archive, this model family spans 6 indexed model years from 1957 to 1962, allowing buyers to track year-over-year changes in emissions tuning, weight and equipment.
Engine
Displacement 249.0 ccm (15.19 cubic inches)
Engine Type Single cylinder, two-stroke
Engine Details Single cylinder, two-stroke
Bore x Stroke 66.0 x 73.0 mm (2.6 x 2.9 inches)
Fuel System Carburettor. Amal
Cooling Air
Transmission
Final Drive Chain (final drive)
Chassis
Front Suspension Hydraulic telescopic
Rear Suspension Swingarm-two shocks
Wheels & Brakes
Front Tyre 3.25-18
Rear Tyre 3.25-18
Front Brakes Expanding brake (drum brake)
Rear Brakes Expanding brake (drum brake)
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Rider Profile
Who Is This Bike For?
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All-Round & Adventure
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