Sym Joymax Z 300 vs Yamaha Nmax 155
Side-by-side comparison for used motorcycle buyers
Sym Joymax Z 300 vs Yamaha Nmax 155. Sym Joymax Z 300: 24.5 hp @ 7,500 rpm hp, 183 kg (wet/curb weight) weight, top speed 135 km/h, Motoryk rating 7.5/10. Yamaha Nmax 155: 15.1 hp @ 8,000 rpm hp, 127 kg (wet/curb weight) weight, top speed 125 km/h, Motoryk rating 7.8/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Sym Joymax Z 300
Yamaha Nmax 155
Horsepower (hp)
24.5 hp
15.1 hp
Torque (Nm)
26.5 Nm
13.9 Nm
Top Speed (km/h)
135 km/h
125 km/h
Weight (kg) — lower is better
183 kg
127 kg
Type
Scooter
Scooter
Horsepower
24.5 hp @ 7,500 rpm
15.1 hp @ 8,000 rpm
Torque
26.5 Nm @ 6,000 rpm
13.9 Nm @ 6,500 rpm
Top Speed
135 km/h
125 km/h
Weight
183 kg (wet/curb weight)
127 kg (wet/curb weight)
Fuel
3.0–3.5 L/100km (approx. 28–33 km/L)
2.4 L/100km or approximately 41 km/L (typical real-world average)
Fairing
Yes
Yes
Individual Reviews
Sym Joymax Z 300
7.5/10
"Honest urban workhorse that rewards buyers who inspect carefully."
Pros
+Exceptional real-world fuel economy
+Cavernous genuinely useful storage
+Smooth progressive braking setup
Cons
−Variator belt often neglected
−Parts sourcing outside cities
−Windscreen adjuster wears quickly
Yamaha Nmax 155
7.8/10
"A smart, reliable urban weapon if you buy carefully."
Pros
+Bulletproof Blue Core engine
+Excellent underseat storage
+Composed, planted handling
Cons
−Front forks leak when neglected
−Plastics scratch embarrassingly easily
−Pillion comfort is mediocre
Top 10 Accessories
Picks that work on either bike.
