Derbi Senda R 125 4T (1999-03) vs Yamaha FZ 400N (1984) vs Yamaha VMX V-Max 1.7 (2020) vs Derbi GPR 125 Nude (2005-)
Comparison technical specifications
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| Make: | Derbi | Yamaha | Yamaha | Derbi |
| Model: | Senda R 125 4T | FZ 400N | VMX V-Max 1.7 | GPR 125 Nude |
| Years: | 1999-03 | 1984 | 2020 | 2005- |
| Engine: | Four stroke, single cylinder. OHC | Four stroke, transverse four cylinder, DOHC, 4 valves per cylinder. | Four stroke, V-four, DOHC, 4 valve per cylinder. | Two stroke, single cylinder |
| Capacity: | 124 cc / 7.6 cu-in | 399 cc / 24.3 cu-in | 1679 cc / 102.4 cu-in | 124.7 cc / 7.6 cu-in |
| Bore x Stroke: | 56 x 49 mm | 54 x 43.6 mm | 90 x 66 mm | 56 x 50 mm |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled | Liquid cooled |
| Compression Ratio: | 11.0:1 | 11.5:1 | 11.3:1 | 12.5:1 |
| Induction: | 22mm Keihin | 4x Mikuni BDST32 carburetor | Mikuni 48mm fuel injection | 28mm Mikuni |
| Ignition: | Electronic | TCI Digital | TCI | Electronic CDI |
| Starting: | Electric | Electric | Electric | Electric |
| Max Power: | 9 kW / 12 hp @ 6500 rpm | 50 hp @ 11500 rpm ) | 147.2 kW / 200 hp @ 9000 rpm | 11 kW 15 hp @ 8250 rpm |
| Max Torque: | 9 Nm / 6.6 lb-ft @ 6500 rpm | 3.7 kgf-m @ 10000 rpm | 166.8 Nm / 17.0 kgf-m @ 6500 rpm | 13.5 Nm @ 77500 rpm |
| Transmission: | 5 Speed | 6 Speed | 5 Speed with slipper clutch | 6 Speed |
| Final Drive: | Chain | Chain | Shaft | Chain |
| Front Suspension: | 41mm Paoli forks | Telescopic forks | 52mm Telescopic forks | Inverted fork. 120mm wheel travel |
| Rear Suspension: | Paoli monoshock | Monoshock | Swingarm Link-type suspension | Monoshock 110mm wheel travel |
| Front Brakes: | Single 260mm disc | 2x 282mm discs | 2x 320mm discs | Single 300mm disc 4 piston caliper |
| Rear Brakes: | Single 220mm disc | Single 210mm disc | Single 280mm disc | Single 180mm disc 2 piston caliper |
| Front Tyre: | 80/90 -21 | 100/90-16 | 120/70 R18 | 110/80 -17 |
| Rear Tyre: | 180/80 -18 | 120/80-18 | 200/50 R18 | 140/70 -17 |
| Fuel Capacity: | 7.5 Litres / 2.0 US gal | 18 Litres / 4.75 gal | 15 Litres / 4.0 US gal | 13 Litres / 3.4 US gal |