1930 Velocette GTP technical specifications

Technical specifications

Model: GTP
Years: 1930-46
Engine: Two-stroke, Single cylinder
Capacity: 249 cc / 15.2 cub in
Bore x Stroke: 63 x 80 mm
Compression Ratio: 6.5:1
Cooling System: Air cooled
Lubrication: Dry sump
Carburetor: Amal, twist grip control
Exhaust: 1-into-2, chrome plated silencers with fish tail mufflers
Ignition: Coil in conjunction with Miller
Starting: Kick start
Clutch: Wet multi-plate
Transmission: Early models: 3 Speed, hand operated Later models: 4 Speed, foot operated
Final Drive: Chain
Gear Ratios (3-speed): 1st 13.5 / 2nd 7.7 / 3rd 5.33:1
Wheelbase: 1270 mm / 50 in
Seat height: 686 mm / 27 in
Ground Clearance: 140 mm / 5.5 in
Front Suspension: Webb fork with shock absorber and steering damper
Rear Suspension: None, spring loaded seat
Front Brakes: 6 in. drum, internal expanding
Rear Brakes: 6 in. drum, internal expanding
Wheels: Spokes
Front Tyre: 3 x 25 in., Avon
Rear Tyre: 3 x 25 in., Avon
Fuel Capacity: 6.6 L / 1.75 US gal
Dry Weight: 101 kg / 222 lbs (light set included)
Colours: Black with gold pin striping
Source: Wikipedia, Bohams

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