Aprilia SR 50 R vs AJS Firefox 50 (2020)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Aprilia SR 50 Rstacks up against the AJS Firefox 50. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecAprilia SR 50 RAJS Firefox 50
Model year20202020
Price
Engine49 cc49 cc
Horsepower3 hp
Seat height31 mm33 mm
Fuel capacity1.9 L1.7 L
Fuel typepetrolpetrol
TransmissionAutomaticAutomatic
Front brakesSingle disc. 2 opposing pistonsSingle disc
Rear brakesSingle disc. 2 opposing pistonsExpanding brake (drum brake)
Tires130/60-13 / 130/60-13 120/70-12 / 120/70-12

Aprilia SR 50 R vs AJS Firefox 50 — which should you buy?

Picking between the Aprilia SR 50 R and the AJS Firefox 50 usually comes down to the numbers you care about most. On paper, the Aprilia SR 50 R brings its published horsepower, while the AJS Firefox 50 counters with 3 hp.

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: