Trials Bikes
2005AJP PR4 125 Trial
27 fields on record
The 2005 AJP PR4 125 is a lightweight trial bike designed for novice and intermediate riders learning technique on manageable terrain. Its compact 125cc four-stroke engine delivers modest power ideal for controlled riding, while the progressive rear suspension and 260mm front travel provide responsive handling over obstacles. Known for affordability and reliability, it remains a popular entry-level choice for trial enthusiasts.
- Capacity
- 125.0 ccm
- Engine
- Single, four-stroke
- Gearbox
- 5-speed
- Dry weight
- 98.0 kg
- Seat height
- 910 mm
- Power
- 14.8 HP (10.9 kW)
How it rides
Editorial estimate from the spec sheet - not lab tested- Best for
- Built purely for technical trials competition, tackling rocks, steps, and slow-speed obstacles rather than covering distance or carrying passengers.
- Built for
- A featherweight, high-clearance single with minimal power but razor-sharp agility, designed to be flicked, hopped, and balanced over obstacles.
- Not ideal for
- Not suitable for riders wanting highway speed, long-distance comfort, or a bike capable of carrying a passenger.
Scores are derived from the spec sheet using the same model across every bike, so they compare like for like.
Engine
- Capacity
- 125.0 ccm
- Power
- 14.8 HP (10.9 kW)
- Engine type
- Single, four-stroke
- Power/weight ratio
- 0.1510 HP/kg (dry)
- Cooling system
- Air
- Fuel system
- Carburettor
- Starting
- Electric & kick
- Valves per cylinder
- 2
Transmission
- Gearbox
- 5-speed
- Transmission type
- Manual
- Final drive
- Chain
Dimensions & weight
- Wheelbase
- 1410 mm
- Overall length
- 2135 mm
- Seat height
- 910 mm
- Dry weight
- 98.0 kg
- Fuel capacity
- 9.00 litres
Chassis & suspension
- Front suspension
- Telescopic fork
- Rear suspension
- Single shock-absorber of progresive action
- Front wheel travel
- 260 mm
- Rear wheel travel
- 260 mm
Brakes & wheels
- Front brakes
- Single disc
- Front brakes diameter
- 260 mm
- Rear brakes
- Single disc
- Rear brakes diameter
- 185 mm
- Front tyre
- 90/90-21
- Rear tyre
- 120/80-18
Compiled from manufacturer documentation and user contributions, corrected on an ongoing basis. Spotted something wrong? Tell us.
Rider Reviews
Common questions
What is the engine size of the AJP PR4 125 Trial?
The 2005 AJP PR4 125 Trial has a Capacity of 125.0 ccm (7.63 cubic inches).
What engine power does the AJP PR4 125 Trial have?
The 2005 AJP PR4 125 Trial has a Power of 14.8 HP (10.9 kW).
How many gears does the AJP PR4 125 Trial have?
The 2005 AJP PR4 125 Trial has a Gearbox of 5-speed.
How much does the AJP PR4 125 Trial weigh?
The 2005 AJP PR4 125 Trial has a Dry weight of 98.0 kg (216.1 pounds).
Shop this bike
Affiliate linksWe may earn a commission from qualifying eBay or Amazon purchases made through these links. As an Amazon Associate I earn from qualifying purchases.
Please log in or register if you'd like to leave a comment.
Own one? Add it to My Garage and write an owner review with an Owner badge.