1970 Triumph Trophy TR6C Special

Triumph Trophy TR6C Special

Make Model	Triumph Trophy TR6C Special
Year	1970
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
Cooling System	Air cooled
Induction	30 mm Amal concentric carburetor
Ignition	Battery and coil, Lucas
Starting	Electric
Max Power	32.8 kW / 44.6 hp @ 6500 rpm
Clutch	Wet, multi-plate, cable operated
Transmission	4 Speed constant mesh
Final Drive	Chain, 106 links
Gear Ratios	1st 11.80 / 2nd 8.17 / 3rd 6.76 / 4th 5.84:1
Frame	Brazed lug, full cradle, single downtube
Front Suspension	Telescopic fork, hydraulic damping
Rear Suspension	Swingarm, 2 x Girling dampers
Front Brakes	SLS drum, full width, 8 in
Rear Brakes	SLS drum, one-side, 7 in
Front Tyre	3.25 x 19, Dunlop
Rear Tyre	4.00 x 18, Dunlop
Dimensions	Length: 2140 mm / 84 in Width: 700 mm / 27.5 in
Wheelbase	1400 mm / 54.5 in
Seat Height	825 mm / 32.5 in
Ground Clearance	127 mm / 5.0 in
Dry Weight	173 kg / 380 lbs
Wet Weight	196 kg / 432 lbs
Fuel Capacity	11.3 Litres / 3.0 US gal

Starting with the 1970 Triumph TR6, the rear chain oiling system, essentially an adjustable 'oil leak' fed by the oil tank, was eliminated because...why else?...it leaked! It would leave puddles on the ground & there were too many of them already. The front fender (mudguard) got a new bottom stay & the rear fender was modified to accepted the "D"-section breather hose which ran along its left side.

The rear grabrail was now integral with the rear fender stay. A new seat pan lowered seat height. The speedometer was changed again to a SSM/00 & the tachometer (rev counter) to an RSM 3003/13.