Yamaha BT 100 Bulldog (2005) vs Yamaha DT 125R Ténéré (1989-90) vs Yamaha FZX 250 Zeal (1991-99)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Yamaha |
| Model: | BT 100 Bulldog | DT 125R Ténéré | FZX 250 Zeal |
| Years: | 2005 | 1989-90 | 1991-99 |
| Engine: | Four stroke, 75°V-twin, SOHC, | Two stroke, single cylinder, reed-valve | Four stroke, transverse four cylinder, DOHC, 4 valve per cylinder, |
| Capacity: | 1063 cc / 64.8 in | 123 cc / 7.5 cu-in | 249 cc / 15.2 cu-in |
| Bore x Stroke: | 95 x 75 mm | 56 X 50 mm | 48 х 34.5 mm |
| Compression Ratio: | 8.3:1 | 6.8:1 | |
| Induction: | 2x 37mm carbs | VM24 carburetor | |
| Ignition: | TCI (Transistor Controlled Ignition) | CDI | TCI Digital |
| Starting: | Electric | Kick | Electric |
| Max Power: | 65 hp / 47.4 kW @ 5500 rpm | 14 hp / 10.3 kW @ 6500 rpm | 40 hp / 29.8 lb-ft @ 12000 rpm |
| Max Torque: | 88.2 Nm / 9 kg-m @ 4500 rpm | 1.5 kgf-m / 15.2 Nm @ 6500 rpm | 2.7 kgf-m @ 9500 rpm |
| Transmission: | 5 Speed | 6 speed | 6 Speed |
| Final Drive: | Shaft | Chain | Chain |
| Front Suspension: | 43mm forks preload adjustable, | Telescopic Forks | Telescopic forks |
| Rear Suspension: | Rising rate monoshock preload adjustable. | Monocross | Dual shocks |
| Front Brakes: | 2x 298mm discs 4 piston calipers | Single 230mm disc | Single disc |
| Rear Brakes: | Single 282mm disc 1 piston caliper | Single 220mm disc | Single disc |
| Front Tyre: | 120/70-17 | 2.75-21 | 110/70-17 |
| Rear Tyre: | 170/60-17 | 4.10-18 | 140/70-17 |
| Seat Height: | 812 mm / 31.9 in | 840 mm / 33.0 in | 735 mm / 28.9 in |
| Fuel Capacity: | 20 Litres / 5.2 US gal | 15 liters / 3.3 gal |