AJS 7R (1952) vs AJS DD125E Mk3 (2012-14)
Comparison technical specifications
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| Make: | AJS | AJS |
| Model: | 7R | DD125E Mk3 |
| Years: | 1952 | 2012-14 |
| Engine: | Single cylinder, 4-stroke, OHC Triple-Camshaft | Twin cylinder, 4-stroke |
| Capacity: | 349.2 cc / 21.3 cub in | 124 cc / 7.6 cub in |
| Bore x Stroke: | 75.5 x 78 mm | 44 x 40 mm |
| Cooling System: | Air/oil cooled | Air cooled |
| Exhaust: | 1-into-1 | 2-into-2, chrome |
| Induction: | Carburetor, 1 3/16 Amal | Carburetor |
| Ignition: | Lucas magneto | Coil, CDI |
| Starting: | Kick | Electric |
| Max Power: | 29.8 kW / 40 hp @ 8000 rpm | 8 kW / 11 hp |
| Clutch: | Dry, multiplate Ferodo | Wet, multi-plate |
| Transmission: | 4-Speed | 5-Speed |
| Final Drive: | Chain | Chain |
| Front Suspension: | Telescopic fork | Telescopic forks |
| Rear Suspension: | Dual shocks | Twin oil damped adjustable shocks |
| Front Brakes: | Drum | Single disc |
| Rear Brakes: | Drum | Single disc |
| Wheels: | Steel, wire spokes | Multi spoke, alloy |
| Dry Weight: | 129 kg / 285 lbs | 145 kg / 329 lbs |
| Fuel Capacity: | 22.7 L / 6.0 US gal | 14 L / 3.7 US gal |