  Heinzmann motor systems are made in Germany - Heinzmann are a company with a long and distinguished history, and they now specialise in electric motors for a wide range of applications. They’ve been developing their high-quality hub motors for over 10 years.
All Heinzmann hub motors are brushed-DC motors - the type Heinzmann have tested extensively and know are tough and reliable. These drive a two-stage gearbox, which drives the wheel through a roller clutch - so there’s absolutely no drag when the motor is not being used, and because the motor is brushed it’s also very smooth - there’s no “cogging” (notchiness in the power). We’ve simplified them down into a few kits - each kit includes everything you need to convert a normal bike, though the simplicity of the Heinzmann system means it will fit lots of unusual bikes too! So there’s the motor, battery, controller, throttle, charger, and the carrier to hold the battery on the back of the bike. You can choose from 5.2Ah or 9.6Ah Lithium-Ion batteries. To double the range, two batteries can be carried on the same carrier frame. You can also choose to have an E-Bike - where the power is purely controlled by the throttle, or a Pedelec, where the throttle is only enabled if you’re pedalling. Finally, you can choose to have the motor in the front or the back - the back motor has a screw-on thread for standard 7-speed freewheels. For lots more info on the Heinzmann system, click here. For some pictures of how the Heinzmann system can be fitted, see here. For the price list and order form, see here. If this all seems too complicated, Heinzmann also make a range of complete bikes with their motors already fitted - see the Estelle bikes... | 
