1975
Yamaha GT80 B - Specifications & Review
Article Complete Info
| Articleid | 535756 |
|---|---|
| Category | Enduro-offroad |
| Make | Yamaha |
| Model | GT80 B |
| Year | 1975 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Steel |
|---|---|
| Frontbrakes | Expanding brake (drum brake) |
| Frontbrakesdiameter | 127 mm (5.0 inches) |
| Frontsuspension | inverted forks |
| Fronttyre | 2.50-15 |
| Frontwheeltravel | 102 mm (4.0 inches) |
| Rake | 32.0° |
| Rearbrakes | Expanding brake (drum brake) |
| Rearbrakesdiameter | 127 mm (5.0 inches) |
| Rearsuspension | non-adjustable dual shock |
| Reartyre | 2.75-14 |
| Rearwheeltravel | 76 mm (3.0 inches) |
Engine & Transmission
| Borexstroke | 47.0 x 42.0 mm (1.9 x 1.7 inches) |
|---|---|
| Clutch | Wet plate |
| Compression | 6.0:1 |
| Coolingsystem | Air |
| Displacement | 72.00 ccm (4.39 cubic inches) |
| Enginedetails | Single cylinder, two-stroke |
| Exhaustsystem | Single tuned pipe |
| Fuelsystem | Carburettor. TEIKEI |
| Gearbox | 4-speed |
| Ignition | Points type Ignition |
| Lubricationsystem | Auto lube |
| Maxrpm | 8000 |
| Power | 4.90 HP (3.6 kW)) |
| Topspeed | 91.0 km/h (56.5 mph) |
| Torque | 6.10 Nm (0.6 kgf-m or 4.5 ft.lbs) @ 7200 RPM |
| Transmissiontypefinaldrive | Chain |
Other Specifications
| Coloroptions | White/Competition Yellow |
|---|---|
| Starter | Kick |
Physical Measures & Capacities
| Dryweight | 59.0 kg (130.0 pounds) |
|---|---|
| Fuelcapacity | 4.92 litres (1.30 gallons) |
| Powerweightratio | 0.0831 HP/kg |
| Weightincloilgasetc | 60.3 kg (133.0 pounds) |
About Yamaha
Country of Origin:
Japan
Founder:
Nippon Gakki (Genichi Kawakami led motorcycle entry)
Best Known For:
R-series sportbikes, MT nakeds, YZ/WR off-road, Ténéré ADV
Company History
Yamaha blends engineering polish with musical-instrument attention to feel. From the RD two-strokes to modern crossplane R1s, its sportbikes emphasize chassis communication and reliability. Off-road, YZ/WR platforms define durability and race-fed development, while Ténéré ADV models offer long-legged, serviceable travel. Global dealer depth, parts commonality, and conservative updates make Yamahas easy to own and hard to break. The brand’s hallmark is balance: machines that work on Monday, thrill on Sunday, and keep their manners for decades.