Geco 125 Custom

2003 Siamoto Geco 125 Custom Technical Analysis & Specification Breakdown

Built around Siamoto's custom - cruiser motorcycle platform, the 2003 Siamoto Geco 125 Custom utilizes a 124 cc (7.6 cu in) single cylinder, four-stroke layout. In factory specification, peak output is rated at 12 HP (8.8 kW) at 9,500 rpm while maximum torque reaches 8.5 Nm (6.3 lb-ft) at 8,500 rpm. With a specific output of 96.8 HP per liter and a 1,000 rpm working window between peak torque (8,500 rpm) and peak power (9,500 rpm), the engine character is reflecting a performance-oriented street tune that balances strong mid-range pull with an energetic top-end rush.

On the scales, the Geco 125 Custom measures 125 kg (276 lbs) dry, translating to a power-to-weight ratio of 0.1 HP/kg (10.42 kg per horsepower). Rider ergonomics and chassis geometry center around a 710 mm (28 in) seat height — giving shorter riders and urban commuters confident flat-foot reach at traffic stops, combined with a 1,500 mm (59.1 in) wheelbase engineered for balanced agility and highway composure. The 14-liter (3.7 US gal) fuel tank supports practical everyday commuting and weekend road stints.