Yamaha MT-09 Tracer / Tracer 900 (2019-20) vs Aprilia RX 125 Six days Model L (1988-90)
Comparison technical specifications
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| Make: | Yamaha | Aprilia |
| Model: | MT-09 Tracer / Tracer 900 | RX 125 Six days Model L |
| Years: | 2019-20 | 1988-90 |
| Engine: | Four stroke, transverse three cylinder, DOHC, 12 Valve | Single cylinder, two stroke, Rotax 123 with Gilardoni cylinder/head |
| Capacity: | 847 cc / 51.6 cu-in | 124.8 cc / 7.6 cu in |
| Bore x Stroke: | 78 x 59.1 mm | 54 x 54.5 mm |
| Cooling System: | Liquid cooled | Liquid cooled |
| Compression Ratio: | 11.5 :1 | 11.5:1 |
| Induction: | Electronic fuel injection with YCC-T | VHSB34 LD carburetor |
| Starting: | Electric | Kick |
| Max Power: | 84.6 kW / 114 hp @ 10,000 rpm | 24.2 kW / 32.4 hp@ 10800 rpm |
| Max Torque: | 87.5 Nm / 8.9 kgf-m @ 8,500 rpm | 20.6 Nm / 2.1 kgf-m / 15.2 lb-ft @ 10500 rpm |
| Transmission: | 6 Speed | 6 Speed |
| Final Drive: | O-ring chain | #520 Chain, 12T to 17T pinion gears, 49 T spur gear |
| Front Suspension: | 41mm fork, adjustable preload and rebound damping | Marzocci upside down fork |
| Rear Suspension: | Rear single shock, adjustable preload and rebound damping | Swingarm with single shock absorber, Aprilia Progressive system with compression extension, adjustable, Boge Sachs shock absorber |
| Front Brakes: | 2x 298mm discs, ABS | Single disc, 250 mm |
| Rear Brakes: | Single 245mm disc, ABS | Single disc, 220 mm |
| Front Tyre: | 120/70-ZR17M/C | 90/90-21 |
| Rear Tyre: | 180/55-ZR17M/C | 120/90-18 |
| Wet Weight: | 207 kg / 462 lbs | 115 kg / 253.5 lbs |
| Fuel Capacity: | 18 Litres / 4.8 US gal | 9 L / 2.4 US gal / 2.0 Imp gal |