Sym Symphony St 125
The SYM Symphony ST 125 is a commuter scooter produced by Taiwanese manufacturer SYM (Sanyang Motor), introduced in the mid-2000s as part of their popular Symphony lineup targeting urban riders seeking practical and fuel-efficient transportation. It gained popularity across Asian and European markets for its reliable engine, comfortable ergonomics, and low running costs. The Symphony ST variant offered slightly sportier styling compared to the standard Symphony, making it a notable entry-level scooter choice for daily commuters.
8.5 hp
Power
9.5 Nm
Torque
108 kg
Weight
95–100 km/h — best estimate
Top Speed
2.0–2.5 L/100km (approx. 40–50 km/L) — best estimate
Fuel
Faired
Body
What Buyers Should Know
Solid Long-Term Reliability
SYM's 125cc single-cylinder engine is known for durability when serviced regularly, often exceeding 30,000km without major issues. It shares parts commonality with other SYM models, keeping maintenance costs low.
Watch the Carb & Electrics
Older Symphony ST models can suffer from carburetor gumming if left sitting unused, causing hard starts and rough idling. Electrical connectors are also worth inspecting for corrosion, especially on bikes used in wet climates.
Modest Resale Value
The Symphony ST holds steady but unremarkable resale value due to its budget-commuter positioning — expect to recover around 50-65% of purchase price after 3 years with good maintenance. Clean, low-mileage examples sell noticeably faster.
Full Specifications
Rivals & Alternatives
Bikes that buyers cross-shop with the Sym Symphony St 125
