SYM Symphony S 150 SR 150





Make Model

SYM Symphony S 150 / SR 150




Single cylinder, 4-stroke, 2-valve, SOHC


151 cc / 9.2 cub in.
Bore and Stroke 57.4 x 85.2 mm
Cooling System Air cooled, forced
Compression Ratio 10.4:1
Lubrication Dry sump
Engine Oil Capacity 0.95 L / 2.0 US pints
Transmission Oil Capacity 0.18 L / 0.38 US pints
Exhaust Single

Fuel System

Carburetor (CV)


Battery 12V 6 Ah
Starting Electric & kick

Max Power

7.7 kW / 10.5 hp @ 7500 rpm

Max Torque

10.8 Nm / 1.1 kgf-m / 7.96 ft/lbs @ 6000 rpm
Clutch Centrifugal


Final Drive Belt
Frame Steel, monocuna split steel tube

Front Suspension

Telescopic fork

Rear Suspension

Single hydraulic shock absorber adjustable preload

Front Brakes

Hydraulic disc, 226 mm

Rear Brakes

Disc, 226 mm
Wheels Aluminium

Front Tyre

110/70-16 52P

Rear Tyre

110/70-16 52P


Length:  2000 mm / 78.7 in.

Width:      690 mm / 27.2 in.

Height:   1125 mm / 44.3 in.

Wheelbase 1330 mm / 52.3 in.

Wet Weight

116 kg / 256 lbs

Fuel Capacity 

5.5 L / 1.5 US gal
Top Speed 100 km/h / 62 mph
Colours Silver, Grey, White, Matt grey, Black
Source Scooter Community




I got it to have an easy, cheap and fun way of making the 18km journey to Sydney cbd over the harbour bridge. So far nothing but positive results. The Symphony 150cc engine keeps up with traffic without a problem and easly sits on 80km/h. Still has more in the engine and on a fairly flat run have hit 100km/h. Manages hills pretty well with only a little loss of speed but a squirt of the throttle gets you going again. Big hills do need a good run in speed to keep with traffic flow.

The larger 16" wheels feel great and the scooter handles bumps easily without feeling unstable at all. Zipping around isn't a worry even with slightly bigger wheels. Really comfortable and enjoyable ride. The scooter feels bigger with larger wheels and you feel like you sit up high. The seat is lower at the front allowing me (on the shorter side) to easily reach the road flat footed but still feel high. Really impressive.

Now the negative:
1. Under seat storage is small. Don't bother trying to fit a helmet. This makes a top box a must.
2. Fuel tank is small. About 5L which I think I can get 120km out of a tank but it does mean more frequent visits to the pump.
3. Front light seems a little dark at night.

All in all I would say this is a great scooter and safe comfortable ride - I think its a good deal!


Review by: Anthom