This all-new RX 125 was shown alongside the SX 125 supermoto at EICMA and reached showrooms for 2008, borrowing its styling from the four-stroke RXV…
| MODEL | APRILIA RX 125R 2007 - 2009 |
| Year | 2007 - 2009 |
| Engine Type | Single cylinder, two-stroke, aluminium cylinder with Nikasil liner, reed-valve intake, Euro 3 |
| Displacement / Capacity | 124.8 cc / 7.6 cu in |
| Bore X Stroke | 54 x 54.5 mm |
| Compression Ratio | 12.5:1 |
| Cooling System | Liquid cooled |
| Max Power | — |
| Max Torque | — |
| Ignition | Electronic CDI |
| Induction | Dell'Orto VHST 28 carburettor |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | Separate oil mixing, variable-flow volumetric pump |
| Gear Box | 6-speed |
| Clutch | Wet multi-plate |
| Final Drive | Chain, 16/49 |
| CHASSIS SPECS | |
| Frame | High-strength steel double trellis beam and double cradle, separate seat frame |
| Front Suspension | 40 mm upside-down telescopic fork, 260 mm travel |
| Rear Suspension | Steel swingarm, hydraulic monoshock with piggyback reservoir, 270 mm travel |
| Front Brakes | Single 260 mm disc, floating 2-piston caliper |
| Rear Brakes | Single 220 mm disc, floating 1-piston caliper |
| DIMENSION SPECS | |
| Overall Length | 2165 mm / 85.2 in |
| Overall Width | 840 mm / 33.1 in |
| Overall Height | 1170 mm / 46.1 in |
| Seat Height | 935 mm / 36.8 in |
| Wheelbase | 1480 mm / 58.3 in |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | — |
| WHEEL SPECS | |
| Front Tyre | 90/90-21 |
| Rear Tyre | 120/90-18 |
| FUEL SYSTEM | |
| Fuel Capacity | 10 Litres / 2.6 US gal |
| Fuel Consumption | 5.4 L/100 km / 43 US mpg |
| Top Speed | — |
This all-new RX 125 was shown alongside the SX 125 supermoto at EICMA and reached showrooms for 2008, borrowing its styling from the four-stroke RXV and SXV. Underneath was a fresh steel trellis double-cradle frame, a 40 mm upside-down fork and long-travel suspension, wrapped around a Euro 3 two-stroke single with a Nikasil bore and separate oil injection. It was pitched at young riders as a proper off-roader that could also handle the daily commute.
