2021
AJP SPR 310R - Specifications & Review

Article Complete Info
| Articleid | 279299 |
|---|---|
| Category | Enduro-offroad |
| Make | AJP |
| Model | SPR 310R |
| Year | 2021 |
Chassis, Suspension, Brakes & Wheels
| Frametype | Composite aluminum/steel |
|---|---|
| Frontbrakes | Single disc |
| Frontsuspension | ZF Sachs 48 mm, fully adjustable |
| Fronttyre | 90/90-21 |
| Frontwheeltravel | 300 mm (11.8 inches) |
| Rearbrakes | Single disc |
| Rearsuspension | ZF Sachs progressive system with reser, fully adjustable |
| Reartyre | 140/80-18 |
| Rearwheeltravel | 300 mm (11.8 inches) |
Engine & Transmission
| Borexstroke | 77.0 x 53.6 mm (3.0 x 2.1 inches) |
|---|---|
| Clutch | Oil bath, multidisc |
| Compression | 12.9:1 |
| Coolingsystem | Oil & air |
| Displacement | 297.6 ccm (18.16 cubic inches) |
| Enginedetails | Single cylinder, four-stroke |
| Fuelsystem | Injection. Get fuel injection 45mm |
| Gearbox | 6-speed |
| Lubricationsystem | Wet sump |
| Transmissiontypefinaldrive | Chain |
| Valvespercylinder | 4 |
Other Specifications
| Coloroptions | White/grey/red |
|---|---|
| Comments | AJP is a Portuguese brand. |
| Starter | Electric |
Physical Measures & Capacities
| Fuelcapacity | 9.50 litres (2.51 gallons) |
|---|---|
| Groundclearance | 355 mm (14.0 inches) |
| Seatheight | 960 mm (37.8 inches) If adjustable, lowest setting. |
About AJP
Country of Origin:
Portugal
Founder:
António Pinto & Jorge Pinto
Best Known For:
Lightweight enduro/adventure singles with fuel-in-frame and nimble chassis
Company History
Founded in 1987 by brothers António and Jorge Pinto, AJP is Portugal’s boutique off-road specialist. The company made its name with lightweight, rider-focused enduro machines that emphasized chassis feedback over spec-sheet bravado. Distinctive fuel-in-frame solutions and compact packaging keep mass centralized, producing bikes that feel planted yet eager on technical terrain. Unlike many small brands, AJP designs for durability as much as performance—subframes that handle luggage, sensible service access, and engines chosen for tractable torque. In the 2010s AJP expanded into the adventure segment with mid-displacement singles that carry the brand’s ‘light is right’ ethos onto backroads and gravel, offering an antidote to overweight ADV behemoths. Owners praise steering neutrality, real-world suspension tuning, and the way the bikes encourage long days without fatigue. Dealer networks are modest but passionate, with parts pipelines that reflect a company grounded in racing and trail feedback. Historically, AJP demonstrates that a small European marque can thrive by knowing exactly who it serves: riders who value feel, simplicity, and human-scale engineering. In a market crowded with electronics and bulk, AJP’s motorcycles invite you to stand on the pegs, look ahead, and flow through terrain rather than overpower it—a philosophy with deep roots in the Iberian countryside where the brand was born.
