Triumph Motorcycles

Specification Tiger "80" and Tiger "70" Models

ENGINE : Single-port O.H.V., high efficiency units of advanced design individually tuned and Heenan and Fronde brake-tested, dismantled, inspected and re-assembled by expert mechanics Tiger "80" bore and stroke 70 mm. by 89mm. 343 c.c. Tiger "70" bore and stroke: 63 mm. by 80 mm.. 249 c.c. All-gear drive to Magdyno highly finished cylinder barrel, deeply finned. Cylinder head of efficient design, highly polished to correct contours, piston of special alloy - choice of high or low compression.

CONNECTING ROD: "H" Section. Nickel chrome stamping of light stiff construction, polished all over. Large diameter double roller bearing big end.

CRANKCASE : Aluminium alloy, internally webbed and of great rigidity, with magneto platform cast integrally with timing case

FLYWHEELS : High tensile forged steel with polished peripheries. Mainshaft mounted on large diameter ball bearings.

VALVE SPRINGS : Duplex Aero quality.

LUBRICATION: Full dry sump system, incorporating accessible plunger typo pumps with positive feed to double roller bearing big end. unclosed overhead valve gear with automatic lubrication to rockers and valve guides. Long wear and mechanical silence. Oil gauge in instrument panel.

CARBURETTER : Large bore Amal. Triumph patented quick-action twist-grip throttle control with click action.

PETROL TANK : All-steel welded, combining shapely streamline contour with 3 gallon capacity. Die-cast all-metal, permanent nameplate. Flush rubber mounted instrument panel of moulded construction, carrying oil gauge, ammeter, switch and new and exclusive external panel light. Quick-opening filler cap.

OIL TANK : All-steel welded with accessible filters, drain plug and separate vent. Capacity : ¾ gallon.

FRAME : Braced full cradle type, soundly constructed from lubes of finest alloy steel, combining great strength with low overall weight. Large diameter single down tube. Light, but positive steering, comfortable riding position and a high standard of roadholding at speed.

FRONT FORKS: Exceptionally light. but strong. Taper tube girder type incorporating rebound dampers with liana adjustment on the lower bridge.

GEARBOX : Four-speed all-Triumph design and manufacture Gears and shafts of hardened nickel chrome steel, finished to the highest possible standards of accuracy and precision Patented positive stop foot-change fully enclosed. Short pedal movement ensuring delicacy of control with completely positive action. Large diameter multi-plate clutch with enclosed operating gear ; light in operation with smooth engagement ; accessible adjustment. Lubrication by engine oil.

TRANSMISSION : Primary chain running in polished cast aluminium oil-bath chain case of streamline design. Rear chain positively lubricated by feed from primary chain case.

BRAKES : Triumph 7" diameter brakes with extra wide shoos. New brake lining material giving powerful and smooth braking with long life. Finger adjustment. Front brake adjustment accessible from saddle.

SADDLE : De Luxe soft top type, adjustable for height

HANDLEBAR : New Triumph design with modified bend, resiliently mounted, eliminating fatigue and shocks and giving great riding comfort and controllability. Control levers grouped and adjustable to suit individual requirements. Long type brake and clutch levers.

MUDGUARDS: Of adequate width with streamline section stays, detachable tail piece to facilitate rear wheel removal. New front number plate with chromium edge and motif. Streamlined rear number plate (regd. design) with rear lamp mounted centrally above the number where it is adequately protected against risk of damage.

WHEELS AND TYRES : Latest Triumph wheels with spokes of approximately equal length, taking braking and transmission stresses Dunlop tyres: front 26" x 3" ribbed : rear 26" x 3.25" speed universal.

TOOLBOX : Shapely all-steel construction, of large capacity, with rubber sealed lid ensuring protection against water. Complete set of good quality tools and grease gun.

FINISH AND Equipment : petrol tank finished in chromium plate, panelled in Silver sheen, lined out in Blue. New design of knee grips combining maximum comfort with security at high speeds Mudguards in Silver sheen with Black centre strip, lined out in Blue. Spokes and rims chromium plated, rim centres in Silver sheen lined out in Blue. Lucas 6-volt magdyno lighting with voltage control. Lucas 8" diameter chromium plate, anti-glare headlamp. Altette horn. Chromium plated, upswept or downswept, exhaust pipe to choice. All aluminium parts smooth and highly polished, and both chromium plate and enamel of the highest quality. All bolts Cadmium plated.

If you have a query or information about Triumph motorcycles of the late 1930s please contact us

Classic Motorcycle Fibreglass
Classic Motorcycle Fibreglass
Tanks, seats, guards and fairings for classic bikes, cafe racers and post-classic motorcycles.