Aprilia STX 150 vs Yamaha SZ-RR Version 2 (2020)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Aprilia STX 150stacks up against the Yamaha SZ-RR Version 2. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecAprilia STX 150Yamaha SZ-RR Version 2
Model year20202020
Price
Engine149 cc149 cc
Horsepower12 hp
Torque13 Nm
Weight134 kg
Seat height32 mm
Fuel capacity4.8 L3.7 L
Fuel typepetrolpetrol
Transmission6-speed5-speed
Front brakesSingle discSingle disc
Rear brakesExpanding brake (drum brake)Expanding brake (drum brake)
Tires90/90-17 / 110/80-17 2.75-17 / 100/90-17

Aprilia STX 150 vs Yamaha SZ-RR Version 2 — which should you buy?

Picking between the Aprilia STX 150 and the Yamaha SZ-RR Version 2 usually comes down to the numbers you care about most. On paper, the Aprilia STX 150 brings its published horsepower, while the Yamaha SZ-RR Version 2 counters with 12 hp at 134 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: