Aprilia RST 1000 Futura (2004) vs Honda MSX 125 Grom (2021) vs Aprilia RS4 125 (2017-18)
Comparison technical specifications
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| Make: | Aprilia | Honda | Aprilia |
| Model: | RST 1000 Futura | MSX 125 Grom | RS4 125 |
| Years: | 2004 | 2021 | 2017-18 |
| Engine: | Four stroke, longitudinal 60°V twin, DOHC, 4 valves per cylinder | Four stroke, single cylinder, SOHC, 2 valve | Four stroke, single cylinder, DOHC, 4 valves |
| Capacity: | 997.6 cc / 60.9 cu in | 124.9 cc / 7.62 cu-in | 124.8 cc / 7.6 cu in |
| Bore x Stroke: | 97 x 67.5 mm | 50.0 x 63.1 mm | 58 X 47 mm |
| Compression Ratio: | 11.8:1 | 10.0:1 | 12.5 ± 0.5:1 |
| Cooling System: | Liquid cooled | Air cooled | Liquid cooled |
| Induction: | Fuel injection | Injection PGM-FI | Magneti Marelli M3G ø 32mm ECU |
| Starting: | Electric | Electric | Electric |
| Max Power: | 83 kW / 113 hp @ 9250 rpm (rear tyre 101.8 hp @ 9250rpm) | 9.6 hp / 7.2 kW @ 7250 rpm | 11.7 kW / 16 hp @ 10500 rpm |
| Max Torque: | 96 Nm / 9.78 kgf-m 70.8 lb-ft @ 7250 rpm | 10.5 Nm / 7.7 lb-ft @ 5500 rpm | 11 Nm / 1.12 kgf-m / 8.1 ft/lb @ 8500 rpm |
| Clutch: | Wet, multiple discs, cable operated | Wet multiplate | Multiple discs, in oil bath |
| Transmission: | 6 Speed | 5 Speed | 6 Speed |
| Final Drive: | Chain | Chain | Chain: 60/13 (4.61) |
| Frame: | Auminium, twin spar | Steel mono-backbone frame | Aluminum perimeter frame |
| Front Suspension: | Showa upside-down Ø43 mm fork, adjustable for rebound and preload. 120mm wheel travel | 31mm USD forks | Ø41 mm Upside down fork |
| Rear Suspension: | Swing arm in aluminium alloy, progressive linkage. Sachs hydraulic shock absorber, adjustable for rebound and preload | Mono shock, steel square pipe swingarm | Asymmetric swingarm with monoshock |
| Front Brakes: | 2 x Ø320 mm discs, 2 piston calipers | Single 220mm disc with hydraulic dual-piston brake caliper | Single 300 mm disc, 4 piston caliper |
| Rear Brakes: | Single Ø255 mm disc, 2 piston caliper | Single 190mm disc with hydraulic single-piston brake caliper | Single 218 mm disc, 1 piston caliper |
| Front Tyre: | 120/70 ZR17 | 120/70-12 | 110/80 17 |
| Rear Tyre: | 180/55 ZR17 | 130/70-12 | 130/70 17 |
| Dimensions: | Length: 2170 mm / 85.4 in Width: 740 mm / 29.1 in Height: 1220 mm / 48.0 in | Length 1760 mm / 69.2 in Width 720 mm / 28.3 in Height 1015 mm / 39.9 in | Length: 1953 mm / 76.8 in Width: 760 mm / 29.9 in Height: 1135 mm / 44.6 in |
| Wheelbase: | 1435 mm / 56.5 in | 1200 mm / 47.2 in | 1353 mm / 53.2 in |
| Seat Height: | 820 mm / 32.3 in | 761 mm / 29.9 in | 820 mm / 32.3 in |
| Fuel Capacity: | 21 L / 5.5 US gal | 6 Litres / 1.58 US gal | 14.5 Litres / 3.8 US gal |