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Aprilia RS4 125 - 2011 Specifications and Reviews

4.5 stars Average rating: 4.5 from 2 votes
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Intresting Fact:
At the point the RS4 125 was launched over 100,000 of its predecessor (RS125) had been sold
Replacement for the: 2011 Aprilia RS125

About the Aprilia RS4 125

Launched in 2011, the four stroke RS4 125 is the bigger brother to the Aprilia RS4 50 and is based on the Derbi GPR125.

A race kit is available which boosts the power from 14.8bhp to 25bhp.

Styling is based on the RSV4 superbike. There is also an optional RSV4 style quick shift system available.

General information

CategorySport
Year2011
ModelAprilia RS4 125

Engine and Transmission Specifications

DrivelinePrimary drive: Gearbox: 63/19 (3.31). Final drive: Chain: 17/40 (2.35).
ClutchMulti-plate in oil bath.
Transmission type,final driveChain
Gearbox6-speed
Cooling systemLiquid
Lubrication systemWet sump
IgnitionCDI
Fuel controlDOHC
Fuel systemInjection
Valves per cylinder4
Bore x stroke58.0 x 47.0 mm (2.3 x 1.9 inches)
Compression12.5:1
Power16.04
Engine typeSingle cylinder, four-stroke
Capacity:124.80 ccm (7.62 cubic inches)

Brakes, suspension, Frame and wheels

WheelsAluminium alloy. Front 3.00 x 17"; rear 4,00 x 17".
Rear brakes diameter220 mm (8.7 inches)
Rear brakesSingle disc
Front brakes diameter300 mm (11.8 inches)
Front brakesSingle disc
Rear tyre dimensions130/70-R17
Front tyre dimensions110/80-R17
Rear suspension travel130 mm (5.1 inches)
Rear suspensionSwingarm. Hydraulic monoshock with adjustable spring preload.
Front suspension travel110 mm (4.3 inches)
Front suspensionUpside down hydraulic fork, 40 mm.
Frame typealuminium, Single cradle frame
 
 

Physical measures and capacities

Fuel capacity14.50 litres (3.83 gallons)
Wheelbase1,350 mm (53.1 inches)
Overall width740 mm (29.1 inches)
Overall length1,955 mm (77.0 inches)
Seat height820 mm (32.3 inches) If adjustable, lowest setting.
Weight incl. oil, gas, etc120.0 kg (264.6 pounds)

Other specs

CommentsRacing driver and race car manufacturer Dan Gurney is the inventor of the Alligator motorcycle.
Wheelbase1,524 mm (60.0 inches)
Dry weight145.2 kg (320.0 pounds)
Rear wheel travel114 mm (4.5 inches)
Rear SuspensionDual Shock absorbers
Front wheel travel109 mm (4.3 inches)
Front Suspension43mm inverted cartridge fork
0-100 km/h (0-62 mph)3.100 seconds
Top speed225.3 km/h (140.0 mph)
Engine detailsHonda engine
Capacity:710.00 ccm (43.32 cubic inches)
ModelAlligator A-6
Color optionsRed/black
StarterElectric

Rider Reviews

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