Sym Mio 50i vs Yamaha Aerox 4 (2021)

Side-by-side spec comparison, pricing, and a plain-English breakdown of how the Sym Mio 50istacks up against the Yamaha Aerox 4. Numbers pulled from manufacturer spec sheets — click either bike for the full review.

Spec comparison

SpecSym Mio 50iYamaha Aerox 4
Model year20212021
Price
Engine50 cc50 cc
Horsepower4 hp3 hp
Torque4 Nm3 Nm
Weight88 kg
Seat height32 mm
Fuel capacity1.4 L1.6 L
Fuel typepetrolpetrol
TransmissionAutomaticAutomatic
Front brakesSingle discSingle disc
Rear brakesExpanding brake (drum brake)Single disc
Tires90/90-10 / 90/90-10 120/70-13 / 130/60-13

Sym Mio 50i vs Yamaha Aerox 4 — which should you buy?

Picking between the Sym Mio 50i and the Yamaha Aerox 4 usually comes down to the numbers you care about most. On paper, the Sym Mio 50i brings 4 hp in a 88 kg package, while the Yamaha Aerox 4 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: