2012 Aprilia SX 125

Aprilia SX 125 2012


2012 Aprilia SX 125 specifications, pictures, reviews and rating

Aprilia's profilation of this bike
With its 17” wheels and sports tyres, the SX is the obvious candidate for the prize of the meanest 125 over mixed routes. Nippy and lightweight, the SX delivers real ‘big bike’ performance without exceeding the power restrictions imposed by law. Its refined, sprightly engine never lets you down.

General information
Model Aprilia SX 125
Year model 2012
Type Super motard
Rating 3.3  Check out the detailed rating of off-road capabilities, engine performance, maintenance cost, etc. Compare with any other bike.
Engine and transmission
Engine size 122.0 ccm (7.44 cubic inches)
Type of engine Single cylinder, two-stroke
Engine details Rotax 122 engine. Aluminium cylinder with Nikasil liner.
Effect 21.5 HP (15.7 kW))
Torque 16.0 Nm (1.6 kgf-m or 11.8 ft.lbs) @ 9750 RPM
Top speed 115.0 km/h (71.5 mph)
Compression 12.5:1
Bore x stroke 54.0 x 54.5 mm (2.1 x 2.1 inches)
Fuel system Carburettor. Dell’Orto VHST 28
Ignition Electronic CDI ignition.
Lubrication system Separate mixing with variable displacement, volumetric pump.
Cooling system Liquid
Gearbox 6-speed
Transmission type Chain (final drive)
Clutch Multi-plate wet clutch.
Emission details Euro 3
Chassis, suspension, brakes and wheels
Frame type High strength steel frame with double trellis beam and double cradle. Detachable seat frame.
Front suspension 40 mm upside down hydraulic fork.
Front wheel travel 260 mm (10.2 inches)
Rear suspension Steel swingarm. Hydraulic monoshock with piggy back cylinder.
Rear wheel travel 270 mm (10.6 inches)
Front tire 110/70-17
Rear tire 150/60-17
Front brakes Single disc
Diameter 260 mm (10.2 inches)
Rear brakes Single disc
Diameter 220 mm (8.7 inches)
Wheels Aluminium
Physical measures and capacities
Dry weight 115.0 kg (253.5 pounds)
Power/weight ratio 0.1865 HP/kg
Seat height 830 mm (32.7 inches) If adjustable, lowest setting.
Overall length 2165 mm (85.2 inches)
Overall width 850 mm (33.5 inches)
Wheelbase 1480 mm (58.3 inches)
Fuel capacity 10.00 litres (2.64 US gallons)
Reserve fuel capacity 1.30 litres (0.34 US gallons)
Other specifications
Color options Black
Starter Kick
Electrical 12V 180W generator.
Update specsReport missing specs or required updates.
Further information
Insurance costsCompare US insurance quotes from the nation's top providers.
Parts finder Check out our overview of motorcycle webshops at Bikez.info.
MaintenanceFind parts, fluids. filters, maintenance tools and service manuals at Amazon.com.
Ask questionsJoin the 12 Aprilia SX 125 discussion group or the general Aprilia discussion group.
Related bikesList related bikes for comparison of specs.
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Rating sample for this Aprilia bike
Engine performance for the 2012 Aprilia SX 125:

Vote scale
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