Aprilia SX 125 For Sale

Aprilia SX 125
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Insurance Costs: 2 of 10
Current Prices: £3,450–£2,300

What Is It?

The Aprilia SX 125 is a learner friendly supermoto style bike and is powered by a liquid cooled 124.2 cc single cylinder four stroke engine, producing 14.8 bhp at 10,700 rpm and maximum torque at 8,000 rpm.

Features include:

  • Steel tubular frame and swingarm
  • 300 mm disc up front with two piston caliper
  • 220 mm disc at the rear with single piston caliper
  • Bosch 9.1ML ABS system (front only)
  • 41 mm upside down fork with 240 mm travel
  • Rear shock with 220 mm travel
  • 6 speed gearbox

Equipment is sparse but you get Steel braided brake lines and a sump guard. The wire-spoked 17" wheels take a 100/80 tyre at the front and a 130/70 at the rear. 

Colours: Black, red

The more off-road focused RX 125 is essentially the same bike but has larger wheels, thinner tyres and wavy discs to suit off-road riding. It's 60 mm longer with a 10 mm longer wheelbase and 25 mm higher seat.


Capacity: 124 cc (low)

Power: 15 bhp / 11 kW (low)

Red Line: 12,000 rpm (high)

Top Speed: 65 mph / 105 km/h (average)

Economy: 80 mpg / 3.5 L/100km (very good)

Range: 120 miles / 193 km (average)

Fuel Capacity: 7.0 litres / 1.5 gallons (low)

Seat Height: 880 mm / 34.6 inches (average)

Wet Weight: 134 kg / 295 pounds (light)

Power to Weight Ratio: 0.112 bhp/kg / 0.083 kW/kg

Launch RRP: £3,400


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Price Guide

Year Dealer Private Part Ex Mileage
2018 £2,850 £2,300 £2,000 3,700
2019 £3,450 £2,800 £2,450 2,100
We work out the price guide in-house.


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Popularity & How Many Left

Year On The Road Off The Road Total For Sale
2018 77 - 77 72 / month
2019 Data coming soon... 58 / month

Source: DVLA