Yamaha XMAX 125 (2018) vs Yamaha XT660R (2014) vs Matchless Silver Hawk (1931-35)
Comparison technical specifications
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| Make: | Yamaha | Yamaha | Matchless |
| Model: | XMAX 125 | XT660R | Silver Hawk |
| Years: | 2018 | 2014 | 1931-35 |
| Engine: | Four stroke, single cylinder | Four stroke, single cylinder, SOHC, 4 valve | V-four cylinder, OHC |
| Capacity: | 124 cc / 7.6 cu-in | 659 cc/ 40.2 cu-in | 592 cc / 38.1 cub in. |
| Bore x Stroke: | 52 x 58.6 mm | 100 x 84 mm | 50.8 x 73 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air cooled |
| Compression Ratio: | 11.2:1 | 10.0: 1 | 6.1:1 |
| Lubrication: | Wet sump | Dry sump | Dry sump with fabric oil filter |
| Ignition: | Electronic TCI | TCI | Lucas dynamo coil |
| Starting: | Electric | Electric | Kick |
| Transmission: | Automatic | 5 Speed | 4-Speed, Sturmey Archer gearbox |
| Final Drive: | Belt | Chain | Chain |
| Front Suspension: | Hydraulic telescopic fork | 43 mm Telescopic forks, | Matchless centre spring girders, finger adjustment |
| Rear Suspension: | Hydraulic unit swing | Oscillating arm standard Monocross. 200mm wheel travel | Cantilever |
| Front Brakes: | Single 267mm disc | Single 298mm disc 2 piston caliper | 203 mm / 8 in. drum, interconnected |
| Rear Brakes: | Single 245mm disc | Single 245mm disc 1 piston caliper | 203 mm / 8 in. drum, interconnected |
| Front Tyre: | 120/70-15 | 90/90- 21 | 3.25 x 19 in. |
| Rear Tyre: | 140/70-14 | 130/80–17 | 1958: 3.25 x 19 in. (4.00 x 19 available as an option) |
| Wheelbase: | 1526 mm / 59.8 in | 1505 mm / 59.3 in | 1422 mm / 56 in. |
| Wet Weight: | 175 kg / 385.8 lbs | 181 kg / 421 lbs | 172 kg / 380 lbs |
| Fuel Capacity: | 13 Litres / 3.4 US gal | 15 Litres / 3.3 US gal | 11.4 L / 3.0 US gal |