BMW K75S (1987-89) vs Yamaha XVS 650 V-Star Custom Midnight (2006) vs Triumph Speedmaster Roadster (2011-12) vs SYM Citicom 125 (2009-14)
Comparison technical specifications
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| Make: | BMW | Yamaha | Triumph | SYM |
| Model: | K75S | XVS 650 V-Star Custom Midnight | Speedmaster Roadster | Citicom 125 |
| Years: | 1987-89 | 2006 | 2011-12 | 2009-14 |
| Engine: | Four-stroke, horizontal three cylinder in-line, DOHC, 2 valves per cylinder | Four stroke, 70°V-twin cylinder, SOHC, 2 valve per cylinder | Four stroke, parallel twin, DOHC, 4 valves per cylinder | Single cylinder, 4-stroke, 4V, SOHC |
| Capacity: | 740 cc / 45 cub-in | 649 cc / 39.6 cu-in | 865 cc / 52.8 cu in | 124.5 cc / 7.6 cub in. |
| Compression Ratio: | 11.0:1 | 9.0:1 | 9.2:1 | 10.5:1 |
| Induction: | Electronic injection, Bosch LE-Jetronic | 2x 28mm Mikuni BDS28 CV carburetors | Multipoint sequential electronic fuel injection with SAI | Electronic |
| Starting: | Electric | Electric | Electric | Electric |
| Transmission: | 5 Speed | 5 Speed | 5 Speed | CVT |
| Clutch: | Single dry plate | Wet, multiple disc | Wet, multi-plate | Centrifugal |
| Final Drive: | Shaft | Shaft | Chain, X-ring | Belt |
| Front Suspension: | Telescopic fork with hydraulic shock absorber | 41mm forks | Kayaba 41mm telescopic forks with polished lowers | Telescopic fork |
| Rear Suspension: | Monolever swinging arm | Adjustable link Monocross | Kayaba chromed spring twin shocks with adjustable preload | Twin sided swing arm, adjustable dampers |
| Front Brakes: | 2 x 285mm discs, 2 piston calipers | Single 298mm disc | Single 310 mm disc, 2 piston Nissen floating calipers | Single hydraulic disc, 260 mm |
| Rear Brakes: | Single 285mm disc | 200mm Drum | Single 285 mm disc, 2 piston Nissen floating caliper | Disc, 220 mm |
| Front Tyre: | 100/90-18 | 100/90-19 | 100/90-R19 | 120/70-15 56P |
| Rear Tyre: | 130/90-17 | 170/80-15 | 170/80-B15 | 140/70-14 68P |
| Dimensions: | Length 2220 mm / 87.4 in Width 900 mm / 35.4 in Height 1340 mm / 51.2 in | Length 2340mm / 92.1 in Width 880mm / 34.6 in Height 1075mm / 42.3 in | Length: 2365 mm / 93.1 in Width: 831 mm / 32.7 in Height: 1168 mm / 46.0 in | Length: 2210 mm / 87.0 in. Width: 785 mm / 30.9 in. Height: 1445 mm / 56.9 in. |
| Seat Height: | 810 mm / 31.9 in or 760 mm / 29.9 in. for low seat model | 695 mm / 27.4 in | 690 mm / 27.1 in | 800 mm / 31.5 in. |
| Dry Weight: | 229 kg / 505 lbs | 214 kg / 471 lbs | 250 kg / 550 lbs | 167 kg / 368 lbs |
| Fuel Capacity: | 21 Litres / 5.54 US gal | 16 Liters / 4.2 US gal | 19.3 Litres / 5.1 US gal / 4.25 Imp gal | 10 L / 2.6 US gal |