Norton Commando 750 Fastback (1970-72) vs KTM 690 SMC R (2019) vs KTM 300 EXC Enduro (2003-04)
Comparison technical specifications
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| Make: | Norton | KTM | KTM |
| Model: | Commando 750 Fastback | 690 SMC R | 300 EXC Enduro |
| Years: | 1970-72 | 2019 | 2003-04 |
| Engine: | Four stroke, parallel twin cylinder, push rod, 2 valves per cylinder. | Single cylinder, 4-stroke, SOHC, 4-valve | Two stroke, single cylinder |
| Capacity: | 745 cc / 45.5 cu in | 690 cc / 42.1 cu in | 293 cc / 17.9 cu in |
| Bore x Stroke: | 73 x 89 mm | 105 x 80 mm | 71.1 x 71.1 mm |
| Compression Ratio: | 9.0:1 | 12.7:1 | 11.0:1 |
| Cooling System: | Air cooled | Liquid cooled | Liquid cooled |
| Induction: | 2 x Ø30mm Amal concentric carburetors | Keihin EFI (throttle body 50 mm) | Keihin PWK36 S AG carburetor |
| Ignition: | 12V, alternator | Keihin EMS with RBW, double ignition | Kokusan digital 2K-3 |
| Starting: | Electric and kick | Electric | Kick |
| Transmission: | 4 Speed | 6-Speed | 5 Speed |
| Final Drive: | Chain | Chain, X-Ring 5/8 × 1/4 in | Chain, Regina O-ring |
| Front Suspension: | Telescopic forks | WP USD XPLOR 48 forks | WP 48 mm upside down fork and shock |
| Rear Suspension: | Dual shocks, 5-way adjustable | WP shock absorber with Pro-Lever linkage | Fully adjustable WP-PDS mono-shock |
| Front Brakes: | Single 203 mm Drum, twin leading shoe | Single 320mm disc, Brembo 4 piston floating caliper | Single260 mm disc, 2 piston caliper |
| Rear Brakes: | Single 178 mm Drum, twin leading shoe | Single 240 mm disc, Brembo single piston floating caliper | Single 220 mm disc, 1 piston caliper |
| Front Tyre: | 4.10-19 | 120/70 ZR 17 | 90/90 - 21, Michelin MP11 |
| Rear Tyre: | 4.10-19 | 160/60 ZR 17 | 140/80 - 18 |
| Wheelbase: | 1441 mm / 56.75 in | 1470 mm / 57.8 in | 1476 mm / 58.1 in |
| Seat Height: | 863.6 mm / 34 in | 890 mm / 35.0 in | 945 mm / 37.2 in |
| Dry Weight: | 190 kg / 420 lbs | 147 kg / 324 lbs | 103 kg / 227 lbs |
| Fuel Capacity: | 10 Litres / 2.6 US gal | 13.5 Litres / 3.5 US gal | 8.5 L / 2.2 US gal / 1.9 Imp gal |