Aprilia RX 125 (2010-13) vs AJS DD125E Mk3 (2012-14) vs Triumph Trophy TR6C Special (1970)
Comparison technical specifications
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| Make: | Aprilia | AJS | Triumph |
| Model: | RX 125 | DD125E Mk3 | Trophy TR6C Special |
| Years: | 2010-13 | 2012-14 | 1970 |
| Engine: | Single cylinder two stroke. Aluminium cylinder with Nikasil coated liner. Read valve intake. Separate mixing. Homologated to Euro 3 standard. | Twin cylinder, 4-stroke | Four stroke, parallel twin cylinder, OHV |
| Capacity: | 124.8 cc / 7.6 cu in | 124 cc / 7.6 cub in | 649 cc / 39.6 cu in |
| Bore x Stroke: | 54 x 54.5 mm | 44 x 40 mm | 71 x 82 mm |
| Cooling System: | Liquid cooled | Air cooled | Air cooled |
| Induction: | Dell’Orto VHST 28 | Carburetor | 30 mm Amal concentric carburetor |
| Ignition: | Electronic CDI | Coil, CDI | Battery and coil, Lucas |
| Starting: | Electric and kick | Electric | Electric |
| Clutch: | Wet, multiplate | Wet, multi-plate | Wet, multi-plate, cable operated |
| Transmission: | 6 Speed | 5-Speed | 4 Speed constant mesh |
| Final Drive: | Chain | Chain | Chain, 106 links |
| Front Suspension: | Upside down telescopic fork, Ø 40 mm. | Telescopic forks | Telescopic fork, hydraulic damping |
| Rear Suspension: | Steel swingarm. Hydraulic monoshock with piggy back cylinder. | Twin oil damped adjustable shocks | Swingarm, 2 x Girling dampers |
| Front Brakes: | Single Ø 260 mm disc. 2 piston caliper | Single disc | SLS drum, full width, 8 in |
| Rear Brakes: | Single Ø 220 mm disc, 1 piston caliper | Single disc | SLS drum, one-side, 7 in |
| Front Tyre: | 90/90-21 | 90/90-18 | 3.25 x 19, Dunlop |
| Rear Tyre: | 120/90 18 | 130/90-15 | 4.00 x 18, Dunlop |
| Wheelbase: | 1480 mm / 58.3 in | 1500 mm / 59 in. | 1400 mm / 54.5 in |
| Seat Height: | 830 mm / 32.7 in | 700 mm / 27.5 in | 825 mm / 32.5 in |
| Fuel Capacity: | 10 liters / 2.6 US gal | 14 L / 3.7 US gal | 11.3 Litres / 3.0 US gal |
| Dry Weight: | 116 kg / 256 lbs | 145 kg / 329 lbs | 173 kg / 380 lbs |