1936 VINCENT COMET FRAME & CYCLE GEAR
The Vincent Comet had frame similar in layout to the V-twin Vincent Black Shadow which included Vincent’s proprietary cantilever rear suspension and Vincent’s Girdraulic forks up front. Also typical of Vincent motorcycles, the Comet had two Single Leading-Shoe (SLS) front drum brakes, one on each side.
1936 VINCENT COMET ENGINE DESIGN
The Vincent Comet engine was an air-cooled 499cc OHV single with its camshaft set high in the crankcases. Both the cylinder block and cylinder head were made of aluminum alloy with a cast iron cylinder liner. The compression ratio was 7.3:1. These engines included a very unique valve arrangement with two valve guides on each valve with the forked rocker arms acting on that portion of the valves that laid between the two guides. This gave the valves more support and a much straighter path. The Comet single served as the basis for the V-twin engine in the Vincent Black Shadow, they just doubled everything. The gearbox was a Burman BAP 4-speed.
QUAIL MOTORCYCLE GATHERING
This lovely Vincent Comet was on display at the 2017 Quail Motorcycle Gathering in Carmel CA. A bit of a tricky day weather-wise (windy and it almost rained) but thankfully, it didn’t keep amazing bikes like this Vincent Comet away. Kudos to its owner.
1936 Vincent Comet
Bore & Stroke
Air-cooled OHV single
84mm X 90mm
6-volt Lucas magneto
28 bhp @ 5,800 rpm
50-watt Miller dynamo
Burman BAP 4-speed, right-foot shift
Oil-bearing, engine as stressed member
Vincent Girdraulic girder forks
2X SLS drums
1X SLS drum
3.00″ X 20″
3.50″ X 19″
390 lbs dry; 415 lbs curb