Yamaha RD 125LC YPVS (1983-84) vs Yamaha RD 350LC YPVS Kenny Roberts Signature (1983)
Comparison technical specifications
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| Make: | Yamaha | Yamaha |
| Model: | RD 125LC YPVS | RD 350LC YPVS Kenny Roberts Signature |
| Years: | 1983-84 | 1983 |
| Engine: | Two stroke, single cylinder | Two stroke, parallel twin cylinder |
| Capacity: | 123 cc / 7.5 cu-in | 347 cc / 21.1 cu-in |
| Bore x Stroke: | 56 х 50 mm | 64 х 54 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 6.4:1 | 6.2 :1 |
| Lubrication: | Autolube | Autolube |
| Induction: | 24mm Mikuni carburetors | 2x 26mm Mikuni slide-needle carburetor |
| Ignition: | Hitachi CDI | Flywheel magneto CDI |
| Starting: | Kick | Kick |
| Max Power: | 20 hp / 15.5 kW @ 9500 rpm | 59 hp / 43.9 kW @ 9000 rpm |
| Max Torque: | 1.6 kgf-m / 16 Nm @ 9250 rpm | 40.2 Nm / 4.1 kgf-m / @ 8000 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | 32mm Telescopic forks | 32mm stanchion tube forks |
| Rear Suspension: | Monocross linkage 6-way preload adjustment | Single shock cantilever 5-way adjustable spring preload |
| Front Brakes: | Single 245mm disc | 2x 267mm disc 1 piston caliper |
| Rear Brakes: | 130mm Drum | Drum |
| Front Tyre: | 2.75-18-4PR | 3.00-18 |
| Rear Tyre: | 3.00-18-6PR | 3.50-18 |
| Dimensions: | Length 1990 mm / 78.3 in Width 735 mm / 28.9 in Height 1190 mm / 46.8 in | Length 2080 mm / 81.8 in Width 750 mm / 29.5 in Height 1090 mm / 42.9 in |
| Wheelbase: | 1295 mm / 50.9 in | 1365 mm / 53.7 in |
| Seat Height: | 775 mm / 30.5 in | 785 mm / 30.9 in |
| Ground Clearance: | 185 mm / 7.2 in | 165 mm / 6.4 in |
| Dry Weight: | 98 kg / 216 lbs | 143 kg / 315.2 lbs |
| Fuel Capacity: | 13 Litres / 3.4 US gal | 16.5 Liters / 4.3 US gal |
| Consumption Average: | 64 mpg | 43 mpg |
| Standing ¼ Mile: | 16.7 sec | 13.5 sec / 99.4 mph |
| Top Speed: | 81 mph / 130.3 km/h | 117 mph / 188.2 km/h |