Sym Symphony 150 vs Kymco Ak 550
Side-by-side comparison for used motorcycle buyers
Sym Symphony 150 vs Kymco Ak 550. Sym Symphony 150: ~10.5 hp @ 7,500 rpm (estimated) hp, ~115 kg (wet/curb weight, estimated) weight, top speed ~110 km/h (estimated), Motoryk rating 7.0/10. Kymco Ak 550: 53 hp @ 7,500 rpm hp, 228 kg (wet/curb weight) weight, top speed 170 km/h, Motoryk rating 7.5/10.
Performance at a Glance
Green = winner per metric · Bars are relative to the higher value
Sym Symphony 150
Kymco Ak 550
Horsepower (hp)
10.5 hp
53 hp
Torque (Nm)
11.5 Nm
53 Nm
Top Speed (km/h)
110 km/h
170 km/h
Weight (kg) — lower is better
115 kg
228 kg
Type
Scooter
Scooter
Horsepower
~10.5 hp @ 7,500 rpm (estimated)
53 hp @ 7,500 rpm
Torque
~11.5 Nm @ 6,000 rpm (estimated)
53 Nm @ 6,000 rpm
Top Speed
~110 km/h (estimated)
170 km/h
Weight
~115 kg (wet/curb weight, estimated)
228 kg (wet/curb weight)
Fuel
~2.5 L/100km or ~40 km/L (estimated typical real-world average)
4.5 L/100km (approximately 22 km/L)
Fairing
Yes
Yes
Individual Reviews
Sym Symphony 150
7.0/10
"A dependable urban workhorse that rewards sensible buyers over thrill-seekers."
Pros
+Reliable Taiwanese build quality
+Excellent real-world fuel economy
+Smooth, predictable CVT transmission
Cons
−Rear shock deteriorates quickly
−Parts scarce outside dealer network
−Zero excitement above 60mph
Kymco Ak 550
7.5/10
"Serious scooter that deserves more respect than it gets."
Pros
+Strong parallel-twin performance
+Premium suspension setup
+Excellent value used
Cons
−Thin dealer/parts network
−Resale value drops sharply
−TFT display reliability concerns
Top 10 Accessories
Picks that work on either bike.









