Central motor Sunstar SO3 made in Japan available for bicycles of any kind (folding bikes, city bikes, touring bikes, trekking bikes, MTB’s, vintage with rod brakes, etc.).
Cutting-edge solution easy to fit to your own beloved bicycle making it a unique pedelec (Pedal Electric Cycle).
Does not require special frame and it is a real breakthrough in the category, featuring:
• EXTRA LIGHT CENTRAL MOTOR UNIT – At only 3,200 grams and having a very low center of gravity, results in excellent handling characteristics.
• INTEGRATED SENSOR AND DRIVE MECHANISM – Patent registered, this compact unit has an integrated torque sensor, drive and control box. Complementary speed sensor for best power assist control.
• ADJUSTABLE TO ANY BICYCLE FRAME – The drive and battery units are designed to fit standard cycle frames.
The motor unit can be operated choosing from three different driving modes:
• NORMAL MODE, for comfortable riding
• ECO MODE, for maximum battery life
• TURBO MODE, for powerful riding
Main technical characteristics:
• Power: 250W with peaks of 330W
• Maximum thrust of the engine= 44Nm
• 24V battery of 9Ah
• Consumption: 0.6 KW per 100 Km
Conditions of installation:
• Bottom bracket diameter of 33.8 to 34.2mm
• Bottom bracket width of 68 to 70 mm
The kit incudes the motor SO3 with the necessary fittings to fix it to the bicicle, crank of 41 or 48 teeth, left and right crank arms in silver color, battery of 24V and 9Ah, support to fix the battery to the frame, charger kit,