Suzuki RG 250 Gamma (1985) vs KTM 400 EXC (2009-10) vs Maico GM Star 250E (1986) vs Vespa 150 Sprint / Veloce (1965-79)
Comparison technical specifications
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| Make: | Suzuki | KTM | Maico | Vespa |
| Model: | RG 250 Gamma | 400 EXC | GM Star 250E | 150 Sprint / Veloce |
| Years: | 1985 | 2009-10 | 1986 | 1965-79 |
| Engine: | Two stroke, parallel twin, reed valve | Four stroke, single cylinder, SOHC, 4 valves | Single cylinder, two sroke, SOHC | Two stroke, single cylinder |
| Capacity: | 247 cc / 15.1 cu in | 393 cc / 24.0 cu-in | 247 cc / 15.1 cub in | 145.5 cc / 8.9 cub in |
| Bore x Stroke: | 54 x 54 mm | 95 x 55.5 mm | 67 x 70 mm | 57 x 57 mm |
| Ignition: | Pointless Electrical Ignition | Kokusan contactless DC-CDI ignition with digital advanced system | MOTOPLAT electronic | Coil, CB point |
| Starting: | Kick | Electric & kick | Kick | Kick start |
| Max Power: | 32.8 kW / 45 hp @ 8500 rpm | 32.1 kW / 44 hp @ 8000 rpm | 36 kW / 49 hp @ 8000 rpm (Restricted model: 12.5 kW / 17 hp) | 5.7 kW / 7.7 hp @ 5000 rpm |
| Clutch: | Wet, multi-plate | Wet, multiplate | Wet, multi disc | Wet, multiplate |
| Transmission: | 6 Speed, constant mesh | 6 Speed | 5-Speed | 4 Speed, grip-shift, constant mesh |
| Final Drive: | Chain, #520, 110 links, O-ring sealed | Chain, X-ring, 5/8 x 1/4" | Chain | Direct drive |
| Front Suspension: | Telescopic fork, coil spring, oil dampened with anti-dive | WP 4860 MXMA PA upside down fork | Hydraulic telescopic fork, Ø 42 mm | Mono shock, trailing arm |
| Rear Suspension: | Full Floater, mono-shock, gas/oil damped, spring preload fully adjustable | Fully adjustable WP PDS 5018 DCC shock | Maico twin link with Öhlins shock | Coil spring with damper |
| Front Brakes: | 2 x 260 mm Discs ,1 piston caliper | Single 260 mm disc, Brembo double piston floating caliper, sintered pad | Disc | 125 mm drum |
| Rear Brakes: | Single 210 mm disc, 1 piston caliper | Single 220 mm disc, Brembo single piston floating caliper, organic pads | Disc | 127 mm drum |
| Front Tyre: | 100/90-16 | 90/90 - 21 M/C 54M M+S TT, Metzeler MCE 6 Days Extreme | 3.00 x 21 in. | 3.5 x 10" |
| Rear Tyre: | 100/80-18 | 140/80 - 18 M/C 70M M+S TT, Metzeler MCE 6 Days Extreme | 4.10 x 18 in. | 3.5 x 10" |
| Wheelbase: | 1385 mm / 54.5 in | 1475 mm / 57.1 in | 1480 mm / 58.3 in. | 1200 mm / 47.2 in |
| Seat Height: | 785 mm / 30.9 in | 985 mm / 38.8 in | 960 mm / 37.8 in. | 810 mm / 31.9 in |
| Fuel Capacity: | 17 Litres / 4.5 US gal / 3.7 Imp gal | 9 Litres / 2.4 US gal / 2.0 Imp gal | 10.1 L / 2.7 US gal | 7.7 L / 2.1 US gal |