Triumph Motorcycles

Today in Motorcycle History

Triumph Model W 277cc 1929

Triumph Model W 2.77 HP


    ENGINE. 2.77 h.p. Triumph, single cylinder, 66.5x80 mm. bore and stroke, capacity 277-8 c.c., side by side valves, adjustable tappets, decompressor (Patent No. 281104) and exhaust valve lifter, aluminium piston, full floating gudgeon pin, roller-bearing big end. Adjustable mechanical oil pump and sight feed, with bye-pass feed for hand pump.

    SILENCER. Single pipe, in. diameter, 38 in. long, leading into a large-size expansion chamber.

    CARBURETTER. Triumph semi-automatic (Patent No. 24213)

    IGNITION. High-tension magneto.


    CHAINS. Front, 1/2 in. pitch x .305 in. wide; rear, 1/2 in. pitch x .305 in. wide. Cover to front chain, guard to rear chain.

    CLUTCH. Hand controlled, ball thrust push rod operation.

    GEAR BOX. Three speeds, hand controlled gear operating mechanism mounted direct on box. Enclosed kick-starter mechanism. (Patent Nos. 280730 and 243851.) Standard Ratios : Solo. 5.95; 9.00; 13.45 to 1.

FRAME.-Diamond shape, low saddle position; strong tubular top and bottom stays.

    FOOTRESTS. Adjustable, providing comfortable riding position. (Patent No. 240300 and Reg. No. 726176.)

    REAR STAND. Attached to bottom stay fork ends and held out of position by rear mudguard clip.

    CARRIER. Tubular construction.

    TANKS. Combined petrol and oil compartments, minimum capacity, 1 1/2 gallons petrol, 2 pints oil. Fitted with auxiliary hand pump.


    FORKS. Triumph pattern, single tension spring, bridged links, independent girder construction, adjustable for side play; steering stops.

    HANDLEBAR. Adjustable sports pattern.

    CONTROLS. Substantial straight pull front brake, clutch and exhaust lifter levers, and independently adjustable ignition. air, and throttle levers.

    FRONT STAND. Light tubular construction.

WHEELS.-9 G. spokes throughout.

    TYRES. Dunlop, 26 in. x 2.375 in. wired type.

    MUDGUARDS. Domed section, 5 in. wide.

    BRAKES. Front brake hand controlled, internal expanding spring ring type giving slight servo-action. Rear brake foot operated internal expanding shoe type.

    HUBS. Taper roller bearings, large diameter spindles.

FITTINGS.-Pannier bag, tool roll and complete kit of tools, tyre inflator, oil pressure gun.

FINISH.-Frame coslettised and enamelled in black. Rims, hubs and spokes enamelled black, with gold lines to rims. Tank distinctively panelled.

WEIGHT.-(For registration purposes) without tools and accessories, approximately 195 lbs. (When Lucas ,l Mag-dyno lighting equipment is lined the weight exceeds 200 lbs.)