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Velocette GTP

Make Model	Velocette GTP
Year	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

The first machine to bear the name 'Velocette' was a two-stroke, so called to differentiate it from the larger, four-stroke Veloce model, and the type was an almost permanent fixture of the Hall Green range up until WW2. The ultimate expression of Velocette's two-stroke line - the GTP - appeared in 1930. Unlike many of its contemporaries, the GTP was not a 'built-to-a-price' utility model but a sporting lightweight of advanced design incorporating coil ignition and pumped lubrication controlled by the throttle. Early models had the three-speed hand-change gearbox, later ones the four-speed foot-change type, and all employed the characteristic slim-line Velocette clutch.