Triumph Trophy TR6C (1961)

Make Model: Triumph TR6C / SC / SR / SS Trophy


Year: 1961 –
Engine: Four stroke, parallel twin cylinder, OHV
Capacity: 649 cc / 39.6 cu in
Bore x Stroke: 71 X 82 mm
Compression Ratio: 8.5:1
Valve Clearance (cold): Inlet: 0.05mm / 0.002″ Exhaust: 0.10mm / 0.004″
Valve Timing: Inlet Valve Opens: 34 degrees BTDC Inlet Valve Closes: 55 degrees BTDC Exhaust Valve Opens: 48 degrees BTDC Exhaust Valve Closes: 27 degrees BTDC
Induction: 1 x 30 mm Amal Monobloc carburetor
Ignition: Lucas magneto
Spark Plug Gap: 0.50mm / 0.020″
Timing (fully advanced): Crankshaft position 38 degrees BTDC Piston position 11mm / 7/16″ BTDC
Clutch: Multi-plate, wet
Clutch: Wet, multi-plate
Transmission: 4 Speed
Final Drive: Chain, 101 links
Gear Ratios: 4th 4.88 / 3rd 5.81 / 2nd 8.25 / 1st 11.92:1
Front Suspension: Telescopic Forks
Rear Suspension: Swingarm
Front Brakes: Drum
Rear Brakes: Drum
Front Tyre: 3.25 – 19

Rear Tyre: 4.00 – 18
Dimensions: Length 2190 mm / 86.25 in Width 720 mm / 28.5 in
Wheelbase: 1403 mm / 55.2 in
Seat Height: 775 mm / 30.5 in
Dry Weight: 173 kg / 380 lbs
Fuel Capacity: 18 Litres / 4.8 US gal / 4.0 Imp gal


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