Sym Jet X 125 vs Yamaha Nmax 155
Side-by-side comparison for used motorcycle buyers
Sym Jet X 125 vs Yamaha Nmax 155. Sym Jet X 125: ~9.8 hp @ 7,500 rpm (estimated) hp, ~108 kg (wet/curb weight) weight, top speed ~100 km/h (estimated; note: manufacturer figure may vary by market), 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 Jet X 125
Yamaha Nmax 155
Horsepower (hp)
9.8 hp
15.1 hp
Torque (Nm)
9.5 Nm
13.9 Nm
Top Speed (km/h)
100 km/h
125 km/h
Weight (kg) — lower is better
108 kg
127 kg
Type
Scooter
Scooter
Horsepower
~9.8 hp @ 7,500 rpm (estimated)
15.1 hp @ 8,000 rpm
Torque
~9.5 Nm @ 6,000 rpm (estimated)
13.9 Nm @ 6,500 rpm
Top Speed
~100 km/h (estimated; note: manufacturer figure may vary by market)
125 km/h
Weight
~108 kg (wet/curb weight)
127 kg (wet/curb weight)
Fuel
~2.0 L/100km or ~50 km/L (typical real-world average)
2.4 L/100km or approximately 41 km/L (typical real-world average)
Fairing
Yes
Yes
Individual Reviews
Sym Jet X 125
7.5/10
"A genuinely solid used buy if the service history stacks up."
Pros
+Reliable fuel-injected engine
+Above-average build quality
+Sharp modern styling
Cons
−Parts availability can be patchy
−Rear shock wears quickly
−Wet weather braking mediocre
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.









