<p><b>Motor:</b></p><p>Output: 500W</p><p>Rated speed: 2400-2600 RPM</p><p>Rated voltage: 24V DC</p><p>Rated current: 27.4A</p><p>No-load current: ≤2.8A</p><p>Motor weight: 9.2lbs</p><p>Horsepower: 0.68HP</p><p>Peak efficiency at 24V: 80 percent</p><p>Reversible: (w/ polarity swap)</p><p>Sprocket：11 tooth sprocket for #25H chain</p><p><br></p><p></p><p></p><p></p><p><b>Controller:</b></p><p>Rated voltage: 24V DC</p><p>Conversion efficency: 95% </p><p>Under Voltage Protection: 20±0.5V</p><p>Speed regulator (throttle): 1-4 V</p><p><br></p><p></p><p><b>Controller Wiring:</b></p><p>This controller has 8 connectors, compatible with many 24V bikes with up to 350W motors</p><p>1. Battery / 2. Motor / 3. Brake  / 4. Brake light  / 5. Indicator light / 6. Ignition lock / 7. Charger port / 8. Derailleur (throttle)</p><p></p><p>These controllers have 4 groups neccessary cables: Battery, Motor, Ignition lock, Derailleur (throttle), when hook up these 4 groups cables, the E-bike can run normally. Besides, this controller have other optional functions, you can hook them up according to your applications. </p>