Piaggio X8 400 (2007) vs Aprilia SX 50 (2014-15) vs Triumph Bonneville Tridays Edition (2010)
Comparison technical specifications
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| Make: | Piaggio | Aprilia | Triumph |
| Model: | X8 400 | SX 50 | Bonneville Tridays Edition |
| Years: | 2007 | 2014-15 | 2010 |
| Engine: | Four stroke, single cylinder, SOHC, 4 valve | Single cylinder, two stroke | Four stroke, parallel twin cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 399 cc / 24.4 cub in. | 49.9 cc / 3.04 cu in | 865 cc / 52.8 cu in |
| Bore x Stroke: | 85.8 mm x 69 mm | 39.9 x 40 mm | 90 x 68 mm |
| Cooling System: | Liquid cooled | Liquid cooled | Air-cooled |
| Ignition: | Inductive | Electronic CDI | Digital |
| Transmission: | CVT, twist and go | 6 speed | 5 Speed |
| Final Drive: | Belt | Chain | Chain, X-ring |
| Clutch: | Automatic, centrifugal, dry | Wet, multi plate | Wet, multi plate |
| Front Suspension: | Hydraulic telescopic fork, 35 mm Ø | Hydraulic fork, Ø 40 mm | 41mm Kayaba telescopic forks |
| Rear Suspension: | Dual, 4 position preload adjustable shocks | High strength steel swingarm, hydraulic monoshock | Kayaba chrome spring twin shocks with adjustable preload |
| Front Brakes: | Double disc, 240 mm, 2-piston per disc | Single stainless steel disc, Ø 260 mm, floating caliper | Single 310 mm disc, 2 piston Nissen floating calipers |
| Rear Brakes: | Single disc, 240 mm , 2-piston | Single disc, Ø 180 mm, floating caliper | Single 255 mm disc, 2 piston Nissen floating calipers |
| Front Wheel Travel: | 94 mm / 3.7 in. | 195 mm / 7.7 in | 120 mm / 4.7 in |
| Rear Wheel Travel: | 90 mm / 3.5 in. | 180 mm / 7.1 in | 106 mm / 4.17 in |
| Front Tyre: | 120/70 - 14 in. | 100/80 ZR17 | 100/70 R17 |
| Rear Tyre: | 130/70 - 12 in. | 130/70 ZR17 | 130/80 R17 |
| Frame: | Double cradle, high strength tubular steel | Steel beam | Tubular steel cradle, swing arm: twin-sided, tubular steel |
| Dimensions: | Length: 2184 mm / 86.0 in Width: 760 mm / 29.9 in. | Length: 2045 mm / 80.5 in Width: 835 mm / 32.5 in | Length 2113 mm / 83.2 in Width 840 mm / 33.1 in Height 1130 mm / 44.5 in |
| Wheelbase: | 1540 mm / 60.6 in. | 1400 mm / 55.1 in | 1488 mm / 58.6 in |
| Seat Height: | 790 mm / 31.1 in. | 835 mm / 32.9 in | 739 mm / 29.1 in |
| Dry Weight: | 198 kg / 437 lbs | 98 kg / 216 lbs | 205 kg / 451 lbs |
| Fuel Capacity: | 12 L / 3.2 US gal | 7 Litres / 1.85 US gal | 16.0 Litres / 4.2 US gal / 3.5 Imp gal |