Harley-Davidson Speedway racer vs AJP SPR 510R (2021)
Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Harley-Davidson Speedway racerstacks up against the AJP SPR 510R. Numbers pulled from manufacturer spec sheets — click either bike for the full review.
Spec comparison
| Spec | Harley-Davidson Speedway racer | AJP SPR 510R |
|---|---|---|
| Model year | 1934 | 2021 |
| Price | — | — |
| Engine | 500 cc | 501 cc |
| Horsepower | — | 38 hp |
| Weight | — | 119 kg |
| Seat height | — | 38 mm |
| Fuel capacity | — | 2.5 L |
| Fuel type | petrol | petrol |
| Transmission | — | 6-speed |
| Front brakes | — | Single disc. 2-piston calipers |
| Rear brakes | — | Single disc. Single-piston caliper |
| Tires | — | 90/90-21 / 140/80-18 |
Harley-Davidson Speedway racer vs AJP SPR 510R — which should you buy?
Picking between the Harley-Davidson Speedway racer and the AJP SPR 510R usually comes down to the numbers you care about most. On paper, the Harley-Davidson Speedway racer brings its published horsepower, while the AJP SPR 510R counters with 38 hp at 119 kg.
Our spec tables above highlight the winning number on each line. For the full rider-focused reviews including real-world fuel economy, service costs and available colors, click into either bike: