Enduro Bikes

2011AJP PR4 125 Enduro

34 fields on record

The 2011 AJP PR4 125 Enduro is a lightweight trail bike from the Portuguese manufacturer AJP. An air-cooled 124cc four-stroke single produces 12.5 hp through a five-speed gearbox. A tall 910 mm seat and 105 kg dry weight make it nimble on dirt, while staying learner-legal.

Capacity: 124.0 ccm
Engine: Single, four-stroke
Gearbox: 5-speed
Dry weight: 105.0 kg
Seat height: 910 mm
Power: 12.5 HP (9.2 kW)

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What’s new for the 2011 AJP PR4 125 Enduro

vs the 2010

Spec	2010	2011
Power	12.5 HP (9.2 kW) @ 8500 RPM	12.5 HP (9.2 kW)

Other years 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

How it rides

Editorial estimate from the spec sheet - not lab tested

Off-road & trail92%

Cornering45%

City riding35%

Daily riding30%

Touring20%

Two-up10%

Track15%

Best for: Built for trail riding, technical enduro trails, and low-speed off-road exploration rather than any kind of road speed or distance work.
Built for: A purist lightweight enduro machine that prioritizes suspension travel, low weight, and maneuverability over outright power or refinement.
Not ideal for: Not for riders wanting highway comfort, passenger capability, or any real straight-line performance.

Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.

Will it fit you?

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Your height

Inseam (optional)

Units

At 910mm, a rider of 68.9" with a 31" (estimated) inseam will not reach the ground comfortably on the 2011 AJP PR4 125 Enduro, with a cramped knee angle of around 80 degrees and an upright riding position.

Assumes about 30mm of suspension sag once seated. This is an approximation from category-typical geometry, not a measurement of this bike or of you - sit on one before you buy.

More bikes at over 900 mm — Sky High →

Find bikes that fit your height →

Full specifications

Engine

Capacity: 124.0 ccm
Power: 12.5 HP (9.2 kW)
Torque: 8.5 Nm (0.9 kgf-m) @ 8000 RPM
Engine type: Single, four-stroke
Power/weight ratio: 0.1190 HP/kg (dry)
Bore x stroke: 56.5 x 49.5 mm
Cooling system: Air
Fuel system: Carburettor
Starting: Electric & kick
Ignition: CDI
Valves per cylinder: 2

Transmission

Gearbox: 5-speed
Transmission type: Manual
Final drive: Chain
Clutch: Oil bath, multidisc

Dimensions & weight

Wheelbase: 1410 mm
Overall length: 2135 mm
Overall width: 820 mm
Seat height: 910 mm
Dry weight: 105.0 kg
Fuel capacity: 7.50 litres
Ground clearance: Not on record - add it

Chassis & suspension

Frame: Steel double-cradle, detachable rear frame
Front suspension: Paioli Hydraulic fork,
Rear suspension: Sachs mono shock progressive action
Front wheel travel: 260 mm
Rear wheel travel: 290 mm

Brakes & wheels

Front brakes: Single disc. 2 piston calliper
Front brakes diameter: 255 mm
Rear brakes: Single disc. 4 piston calliper
Rear brakes diameter: 210 mm
Front tyre: 90/90-21
Rear tyre: 120/90-18

Other

Color options: Black

Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.

What changed, year to year

Differences highlighted

Specification	2006	2008	2011	2013	2015
Capacity	124 cc	124 cc	124 cc	124 cc	124 cc
Dry weight	105 kg	101 kg	105 kg	105 kg	105 kg
Seat height	910 mm	910 mm	910 mm	910 mm	920 mm
Fuel capacity	8 L	8 L	7.5 L	7.5 L	7 L