AJP SPR 510R - 2021 Specifications and Reviews
The 2021 AJP SPR 510R is a lightweight enduro bike designed for adventure-seeking riders tackling both on and off-road terrain. Powered by a 501cc single-cylinder four-stroke engine producing 38 horsepower, it combines nimble handling with reliable performance. Known for its fuel-injected efficiency and accessible power delivery, this middleweight excels as an entry-level adventure platform for riders exploring diverse riding conditions.
2021
General information | |
| Category | Enduro / offroad |
| Year | 2021 |
| Model | AJP SPR 510R |
| | |
Engine and Transmission Specifications | |
| Transmission type | Chain (final drive) |
| Gearbox | 6-speed |
| Cooling system | Oil & air |
| Lubrication system | Wet sump |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel system | Injection. Get fuel injection 45mm |
| Valves per Cylinder | 4 |
| Bore x Stroke | 97.0 x 67.5 mm (3.8 x 2.7 inches) |
| Compression | 12.9:1 |
| Power | 38.0 HP (27.7 kW) |
| Engine type | Single cylinder, four-stroke |
| Capacity: | 501.0 ccm (30.57 cubic inches) |
Brakes, suspension, Frame and wheels | |
| Rear brakes | Single disc. Single-piston caliper |
| Diameter | 260 mm (10.2 inches) |
| Front brakes | Single disc. 2-piston calipers |
| Rear tire | 140/80-18 |
| Front tire | 90/90-21 |
| Rear wheel travel | 300 mm (11.8 inches) |
| Rear Suspension | ZF Sachs progressive system with reservatory fully adjustable |
| Front wheel travel | 300 mm (11.8 inches) |
| Front Suspension | ZF Sachs Ø48mm fully adjustable |
| Frame type | Aluminum/steel/Composite |
Physical measures and capacities | |
| Fuel capacity | 9.50 litres (2.51 US gallons) |
| Wheelbase | 1450 mm (57.1 inches) |
| Ground clearance | 355 mm (14.0 inches) |
| Seat height | 960 mm (37.8 inches) If adjustable, lowest setting. |
| Power/weight ratio | 0.3193 HP/kg |
| Dry weight | 119.0 kg (262.4 pounds) |
Other specs | |
| Maintenance | Find parts, fluids, filters, maintenance tools and service items on eBay |
| Comments | Portuguese made bike. |
| Starter | Electric |
| Color options | White/red/black |
Performance Profile & Rider Fit
38 hp
Peak Power
5.5s
0-60 mph
Best For
Track20%
City30%
Cornering55%
Daily Riding25%
Touring20%
Passenger5%
Rider Profile
| Best For | This bike suits confident, skilled riders comfortable with a tall, lightweight, aggressive enduro machine rather than newcomers to motorcycling. |
| Purpose | Built as a hardcore offroad and enduro weapon, it excels at trails, technical terrain, and competition-style riding rather than commuting or highway use. |
| Rider Fit | The tall 960mm seat height and minimal weight favor taller, physically fit riders who can handle standing riding and aggressive body positioning. |
| Character | It rewards an adventurous, dirt-focused rider who enjoys precision handling, standing attack riding, and minimal creature comforts. |
| Not Ideal For | This is not the right bike for riders wanting a comfortable commuter, a passenger-friendly tourer, or a plush long-distance highway machine. |
Character map is an editorial estimate based on this bike's specifications, not a lab-tested measurement.
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Rider Reviews
Total comments: 1

MotorcycleDB Review
The 2021 AJP SPR 510R is a high-performance, lightweight dual-sport motorcycle that offers a perfect balance of power and agility. With a powerful 510cc engine and top-notch suspension components, this bike is designed to handle any terrain with ease. The sleek and modern design of the 510R makes it stand out in a crowded market, while its comfortable ergonomics and advanced features ensure a smooth and enjoyable ride for any adventure or off-road enthusiast. AJP has truly delivered with the 2021 SPR 510R, offering a top-of-the-line dual-sport motorcycle that is perfect for both on and off-road riding. From its powerful engine to its durable construction, this bike is a solid choice for anyone looking for a reliable and versatile motorcycle. With its exceptional performance and stylish looks, the 510R is a top contender in its class and a great option for riders who want a versatile and capable dual-sport machine.Add a Comment
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