Aprilia RX 125

Aprilia RX 125

The 1986 Aprilia RX 125 has, at its heart, a liquid-cooled, two-stroke, 124cc, single cylinder powerhouse mated to a six-speed manual transmission.

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Model year
1986
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Engine Power
33.72 HP (24.8 kW) @ 10750 rpm
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Top Speed
80.78 mph

Technical Specifications

Engine and transmission

  • Engine type:
    1 cylinders, 2-stroke, Single
  • Displacement:
    124 cc (7.58 cubic inches)
  • Bore × stroke:
    2.13 inch × 2.13 inch (square)
  • Cooling system:
    Water cooled
  • Power:
    33.72 HP (24.8 kW) @ 10750 rpm
  • Torque:
    14.7 Nm (10.84 lb-ft) @ 6250 rpm
  • Throttle:
    Cable operated
  • Valve train:
    Reed valve, variable
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Funnel diameter:
    1.1 inch
  • Compression:
    11.5:1
  • Engine mounting:
    Transverse
  • Lubrication system:
    Oil pump
  • Gear box:
    Manual 6-speed
  • Clutch:
    Wet, multiple discs, cable operated
  • Final drive:
    Chain
  • Spark plug pipe type:
    Denso
  • Motor oil:
    Synthetic, 2T
  • Starter:
    Kick-starter

Dimensions

  • Length:
    85.2 inch
  • Width:
    33.5 inch
  • Height:
    47 inch
  • Wheel base:
    57.7 inch
  • Ground clearance:
    11.81 inch
  • Seat height:
    36.8 inch
  • Curb weight:
    264.6 lbs
  • Dry weight:
    231.5 lbs

Chassis and suspension

  • Front
    Suspension:
    Cartridge
    Suspension travel:
    10.51 inch
    Brake:
    Single Drum
    Tire:
    76 / 100 R21
  • Rear
    Suspension:
    mono shock, Swingarm
    Suspension travel:
    15.35 inch
    Brake:
    Drum
    Tire:
    102 / 100 R18
  • Frame type:
    steel, Double cradle frame

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.21 KW/lbs (4.84 lbs/HP)
  • Top speed:
    80.78 mph
  • Fuel capacity:
    2.25 gals
  • Number of riders:
    2 persons

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