Aprilia RX 125 (2014-) vs Yamaha XT 125R (2009-12)
Comparison technical specifications
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| Make: | Aprilia | Yamaha |
| Model: | RX 125 | XT 125R |
| Years: | 2014- | 2009-12 |
| Engine: | Single cylinder two stroke. Aluminium cylinder with Nikasil coated liner. Read valve intake. Separate mixing. Homologated to Euro 3 standard. | Four stroke, single cylinder. SOHC, 2 valve |
| Capacity: | 124.8 cc / 7.6 cu in | 124 cc / 7.6 cu-in |
| Bore x Stroke: | 54 x 54.5 mm | 54 X 54 mm |
| Compression Ratio: | 12.5:1 | 10.0:1 |
| Cooling System: | Liquid cooled | Air cooled |
| Induction: | Dell’Orto VHST 28 | Mikuni TM28-92 |
| Ignition: | Electronic CDI | CDI |
| Starting: | Electric and kick | Electric & kick |
| Transmission: | 6 Speed | 5 Speed |
| Final Drive: | Chain | Chain |
| Frame: | High strength steel frame with double trellis beam and double cradle. Separate seat frame. | Box section Semi double cradle |
| Front Suspension: | Upside down telescopic fork, Ø 40 mm. | Telescopic fork |
| Front Wheel Travel: | 260 mm / 10.2 in | 170 mm / 6.6 in |
| Rear Suspension: | Steel swingarm. Hydraulic monoshock with piggy back cylinder. | Monocross with linkage, with 190mm wheel travel. |
| Rear Wheel Travel: | 270 mm / 10.6 in | 190 mm / 7.4 in |
| Front Brakes: | Single Ø 260 mm disc. 2 piston caliper | Single 245mm disc |
| Rear Brakes: | Single Ø 220 mm disc, 1 piston caliper | Single 220mm disc |
| Front Tyre: | 90/90-21 | 90/90-21 |
| Rear Tyre: | 120/90 18 | 120/80-18 |
| Dimensions: | Length: 2165 mm / 85.2 in Width: 850 mm / 33.5 in | Length 1995 mm / 78.5 in Width 840 mm / 33 in |
| Wheelbase: | 1480 mm / 58.3 in | 1335 mm / 52.6 in |
| Seat Height: | 830 mm / 32.7 in | 860 mm / 34 in |
| Fuel Capacity: | 10 liters / 2.6 US gal | 10.0 Litres / 2.2 US gal |
| Dry Weight: | 116 kg / 256 lbs | 111 kg / 245 lbs |
| Standing ¼ Mile: | 20.3 sec | 21.9 sec |
| Top Speed: | 120 km/h / 75 mph | 95.2 km/h |