Aprilia RX 125 and SX 125

The vehicles from Aprilia are mostly loved by many people in Nepal because of the great body design, standard performance, and its technical specifications and now it has launched two new vehicles Aprilia SX 125 and RX 125 in Nepal which are both priced at Rs. 7,99,900.

Aprilia RX 125

Aprilia SX 125

So part of the SX and RX cost-cutting comes from using the same 124.2cc, four-stroke, four-valve, double overhead cam, single cylinder motor as the RS125 and Tuono 125 – the engine covers are slightly different, but the casting and internals are identical. In fact, the motor has been around for a year – built by Zongshen in China, it’s the same unit that once powered Derbi’s GPR125.

And, given what it’s got to work with, it’s not a bad power unit. In the absence of an adults-only quantity of horsepower, the next most important engine characteristic is being able to have the arse revved off it – and with no tacho to distract you, both the SX and RX will happily spend most of their lives swapping between fourth and fifth (inclines and headwinds limit the usefulness of sixth gear), bouncing off the rev limiter downhill. Aprilia say engine power peaks at 10,700rpm, which is crazy high even for a weeny 58mm diameter piston zipping up and down by 47mm every few milliseconds.

But the balance-shaft motor is refreshingly vibe-free – 50 miles or so pretty much flat stick on the RX felt fine, with no finger numbness – and both bikes will gun along at 70mph, eventually. Of the two bikes, the RX is nippier off the line; the SX sports a massive 62-tooth rear sprocket but the down-geared RX beats it with 69 teeth. That’s almost more than all the Bee Gees put together. The difference in gearing is meant to compensate for the RX’s larger rear wheel diameter, but in reality the off-road bike has the edge on acceleration – and that matters a lot on a 125. Aprilia SX 125 is available in two graphic variations like: Red Fun and Black Drift, while the RX 125 will be only available in Red Fun.

Specifications of Aprilia RX 125 and SX 125

Engine and Transmission

Type Single-cylinder, 4-stroke, 4-valve, DOHC, liquid cooled
Displacement 124.8 cc
Power 15.00 HP (10.9 kW)) @ 10500 RPM
Torque 10.90 Nm (1.1 kgf-m or 8.0 ft.lbs) @ 8250 RPM
Compression 12.5:1
Bore x stroke 58.0 x 47.0 mm
Valves per cylinder 4
Fuel system Injection. Magneti Marelli M3G ø 32mm ECU
Fuel control Double Overhead Cams/Twin Cam (DOHC)
Ignition Electronic with CDI capacity discharge
Lubrication system Wet sump
Gearbox 6-speed
Transmission type Chain
Clutch Multi-plate in oil bath

Tyres and Brakes

Front tyre SX125: 100/80-17 RX125: 90/90-21
Rear tyre SX125: 130/70-17 RX125: 120/80-18
Front wheel SX125: 2.5 x 17in RX125: 1.85 x 21in
Rear wheel SX125: 3.5 x 17in RX125: 2.15 x 18in
Front brake 300 mm (SX125) disc, 2-pot caliper, ABS 260mm (RX125) disc, 2-pot caliper, ABS
Rear brake 220mm disc, 1-pot caliper, no ABS

Suspension and Chassis

Frame type Aluminium perimeter
Front suspension Unadjustable 41mm usd forks, 240mm wheel travel
Rear suspension Mono-shock, preload only, 220mm wheel travel

Dimension – Aprilia RX 125 and SX 125

Seat height SX125: 870mm RX125: 905mm
Wet weight 135kg
Wheelbase 1,350 mm

You may also check out about Yamaha XTZ 125. Here!!

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