The legendary Stromer ST1 has been completely reworked. This results in our top-class beginner S-Pedelec with striking good design and reliable drive power for modern mobility and maximum performance. With motor assistance of up to 45km/h (28mph), your Stromer ST1 is ready for action - powerful, dynamic and silent. Let others be bored: the ST1 makes riding fun visible - with integrated design, three sporty colors and lines that reveal its power. Your ST1 offers you basic OMNI functions such as Smartlock or customizable motor settings via Bluetooth. Your new daily ride! Our top-class beginner e-bike with striking good design and reliable drive power for modern mobility and maximum performance. Sport or Comfort The ST1 comes in two frames: The Sport frame for sporty riding and maximum agility; The Comfort frame that is easy to climb onto and off and with maximum agility. FEATURES: Motor assistance up to 28 mph. Rapid communication via Bluetooth Battery ejection at the push of a button. Individual adjustment of the motor settings. 10-year warranty on frame. SPECIFICATIONS: MOTOR: Stromer CYRO Drive II OUTPUT IN WATTS: 670W (US: 550W) TORQUE IN NM: 35Nm CATEGORY US | CA: Class 3, up to 28 mph | Class I, up to 32 km/h BATTERY RANGE: BQ500 | 48 V | 500 Wh | up to 55 miles CHARGER: Stromer CR246 | 246W MAX CHARGING TIME: 3h 40m DISPLAY/INTERFACE: OMNI C CONNECTIVITY: Mobile connection (free of charge) | Bluetooth APP: OMNI KEYLESS: Yes SMARTLOCK: Yes SETTINGS: Yes DISPLAY OF RANGE: Yes GPS POSITIONING: Yes OVER-THE-AIR UPDATES: Yes STATISTICS: Yes FRAME COLOR: Deep Red, Light Grey, Deep Petrol FRAME|FORK: Aluminum FRAME SIZE SPORT: M