Triumph TR 6C Trophy Special

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Triumph-Trophy-TR6C-70.jpg
Triumph TR 6C Trophy Special
Manufacturer
Production 1970
Engine
Four stroke, parallel twin cylinder, OHV
Compression ratio 8.5:1
Ignition Battery and coil, Lucas
Transmission 4 Speed constant mesh
Frame Brazed lug, full cradle, single downtube
Suspension Front: Telescopic fork, hydraulic damping
Rear: Swingarm, 2 x Girling dampers
Brakes Front: SLS drum, full width, 8"
Rear: SLS drum, one-side, 7"
Front Tire 3.25 x 19, Dunlop
Rear Tire 4.00 x 18, Dunlop
Wheelbase 1400 mm / 54.5 in
Seat Height 825 mm / 32.5 in
Weight 173 kg / 380 lbs (dry), 196 kg / 432 lbs (wet)
Fuel Capacity US: 11.3 L / 3.0 US gal / 2.5 Imp gal / UK & Export: 18 L / 4.8 US gal / 4.0 Imp gal
Manuals Service Manual



Engine[edit | edit source]

The engine was a Air cooled cooled Four stroke, parallel twin cylinder, OHV. The engine featured a 8.5:1 compression ratio.

Drive[edit | edit source]

Power was moderated via the Wet, multi-plate, cable operated.

Chassis[edit | edit source]

It came with a 3.25 x 19, Dunlop front tire and a 4.00 x 18, Dunlop rear tire. Stopping was achieved via SLS drum, full width, 8" in the front and a SLS drum, one-side, 7" in the rear. The front suspension was a Telescopic fork, hydraulic damping while the rear was equipped with a Swingarm, 2 x Girling dampers. The TR 6C Trophy Special was fitted with a US: 11.3 L / 3.0 US gal / 2.5 Imp gal / UK & Export: 18 L / 4.8 US gal / 4.0 Imp gal fuel tank. The bike weighed just 173 kg / 380 lbs. The wheelbase was 1400 mm / 54.5 in long.

Photos[edit | edit source]

Triumph TR 6C Trophy Special Triumph TR 6C Trophy Special Triumph TR 6C Trophy Special

Overview[edit | edit source]

Triumph Trophy TR6C Special








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.

Make Model Triumph Trophy TR6C Special
Year 1970
Engine Type Four stroke, parallel twin cylinder, OHV
Displacement 649 cc / 39.6 cu in
Bore X Stroke 71 x 82 mm
Compression 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"
Rear Brakes SLS drum, one-side, 7"
Front Tire 3.25 x 19, Dunlop
Rear Tire 4.00 x 18, Dunlop
Dimensions Lenght: 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 US: 11.3 L / 3.0 US gal / 2.5 Imp gal / UK & Export: 18 L / 4.8 US gal / 4.0 Imp gal