Derbi Mulhacén Café 125 (2008-) vs Buell / EBR Buell XB12S Lightning (2006) vs Yamaha RZ 125 Naked (1985) vs Derbi Mulhacén 659 (2005-) vs Yamaha YR3C (1969-70)
Comparison technical specifications
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| Make: | Derbi | Buell / EBR | Yamaha | Derbi | Yamaha |
| Model: | Mulhacén Café 125 | Buell XB12S Lightning | RZ 125 Naked | Mulhacén 659 | YR3C |
| Years: | 2008- | 2006 | 1985 | 2005- | 1969-70 |
| Engine: | Two stroke, single cylinder | 45° V-Twin, four stroke, pushrod actuated overhead valve. hydraulic self-adjusting lifters, 2 valve per cylinder. | Two stroke, single cylinder | Four stroke, single cylinder, SOHC, 4 valves per cylinder. | Two stroke, parallel twin |
| Capacity: | 124.7 cc / 7.6 cu-in | 1203 cc / 73 cu in | 123 cc / 7.5 cu-in | 659.7 cc / 40.2 cu-in | 347 cc / |
| Bore x Stroke: | 56 x 50 mm | 88.9 x 96.8 mm | 56 х 50 mm | 100 x 84 mm | 61 х 59.6 mm |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 12.5:1 | 10.0:1 | 6.4:1 | 10.0;1 | 7.5:1 |
| Induction: | 28mm Mikuni | Ø49 mm downdraft DDFI II fuel injection | 24mm Mikuni carburetors | Fuel injection 44mm throtlel bodies | Carburetor |
| Starting: | Electric | Electric | Kick | Electric | Kick |
| Max Power: | 11 kW 15 hp @ 8250 rpm | 86.9 kW / 103 hp @ 6800 rpm | 20 hp / 15.5 kW @ 9500 rpm | 48.6 hp / 36.2 kW @ 6000 rpm | 36.5 PS @ 7500 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed | 5 Speed | 5 Speed |
| Final Drive: | Chain | Belt | Chain | Chain | Chain |
| Front Suspension: | 37mm Telescopic forks 100mm wheel travel | Showa inverted forks compression damping, rebound damping and spring preload adjustable | 32mm Telescopic forks | 43mm Upside down forks, 120mm wheel travel. | |
| Rear Suspension: | Monoshock 130mm wheel travel | Showa coil-over monoshock, remote underseat reservoir and adjustable compression damping, rebound damping and spring preload, 127mm wheel travel | Monocross linkage 6-way preload adjustment | Progressive lateral link, 110mm wheel travel. | |
| Front Brakes: | Single 280mm disc | ZTL type brake, 6 piston, fixed caliper, Ø375 mm single-sided, inside out, stainless steel, floating rotor | Single 245mm disc | Single 320mm disc 4 piston calliper | Drum |
| Rear Brakes: | Single 220mm disc | Single Ø240 mm disc, 1 piston floating caliper | 130mm Drum | Single 240mm disc 1 piston calliper | Drum |
| Front Tyre: | 100/90 -18 | 120/70 ZR17 | 2.75-18-4PR | 120/80 -18 | 3.00-18 |
| Rear Tyre: | 130/80 -17 | 180/55 ZR17 | 3.00-18-6PR | 150/70 -18 | 3.50-18 |
| Fuel Capacity: | 11 Litres / 2.9 US gal | 14 L / 3.7 US gal | 13 Litres / 3.4 US gal | 13 Litres / 3.4 US gal | 15 Litres / 4.0 gal |