Aprilia MX 125 (2003-06)

The Aprilia MX 125 was a single cylinder, two-stroke motorcycle produced between 2003 and 2006. It had a 124 cc engine with a bore x stroke of 54 x 54.5 mm and a compression ratio of 12.5:1. The bike was liquid-cooled, with a Dell Orto PHBH 28 RD carburettor for induction and electronic ignition with capacitive discharge. The maximum power output was 24.6 kW or 33 hp, with a maximum torque of 23.0 Nm or 2.3 kgf-m or 17 lb-ft. The bike had a six-speed transmission and final drive chain, with a multiple disk clutch in oil bath. The frame was a closed-cradle split at the level of the exhaust, made from high tensile tubular steel, and front suspension was an upside-down telescopic fork with a diameter of around 40 mm and 260 mm or 10.2 inches of travel. The rear suspension was an aluminium swinging fork with a rectangular cross-section, fitted on frictionless bushes, and a single hydraulic shock absorber with piggyback, providing 280 mm or 11.0 inches of travel. The front brakes were a single floating disc with a diameter of around 320 mm and a two-piston caliper, with the rear brakes being a single floating disc measuring around 220 mm and a caliper. The wheels were aluminium spoked wheels.

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Technical specifications:

Make Model: Aprilia MX 125

Year: 2003 – 06

Engine: Single cylinder, two stroke

Capacity: 124 cc / 7.6 cu in

Bore x Stroke: 54 x 54.5 mm

Compression Ratio: 12.5:1

Cooling System: Liquid cooled

Induction: Dell Orto PHBH 28 RD carburettor

Ignition / Starting: Electronic with capacitive discharged

Starting: Kick

Max Power: 24.6 kW / 33 hp

Max Torque: 23.0 Nm / 2.3 kgf-m / 17 lb-ft

Transmission / Drive: 6 Speed

Final Drive: Chain

Clutch: Multiple disks in oil bath.

Frame: Closed-cradle split at the level of the exhaust, made from high tensile tubular steel

Front Suspension: ~A40 mm Upside-down telescopic fork.

Front Wheel Travel: 260 mm / 10.2 in

Rear Suspension: Aluminium swinging fork with rectangular cross-section, fitted on frictionless bushes, single hydraulic shock absorber with piggy back

Rear Wheel Travel: 280 mm / 11.0 in

Front Brakes: Single ~A320 mm disc, floating 2 piston caliper

Rear Brakes: Single ~A220 mm disc, floating caliper

Wheels: Aluminium spoked wheels