50 km/h CMX E-Bike Speed Box Mid-Motor Drive for Bosch Kalkhoff Impulse Brose Conti Note: Commissioning and use of the CMX tuning box in the area of effect of the German Road Traffic Regulations is not permitted. Use may result in loss of vehicle warranty.Feature:1. The CMX E-Bike Speed-Box Evo2 increases electrical support to 50 km/h. It is characterized by easy handling, intelligent control as well as elegant design and consistent lightweight construction.2. If the Speedbox does not work properly, it is usually due to an empty battery or the wrong position of the spoke magnet. As a small indication, you can remember the following: If no speed indication appears on the display, the magnet has slipped too far to the centre of the wheel and too far away from the speed box. If the real speed is displayed above 20 km/h, the battery is empty or the spoke magnet is close to the speed sensor.Specification:1. Fit For mid-engine from Bosch (please note the size of the speed sensor! ), Kalkhoff, Impulse, Bose and Conti2. The box is only inserted onto the speed sensor and the spoke magnet is offset a small piece.3. At approx. 20-23 km/h, the box starts halving the signal of the speed sensor.4. Reverse speed: 18 km/h.5. Diameter of the cut-out for the speed sensor approx. 15 mm6. Highly efficient energy management (30% saving).7. Battery used: lithium-ion button cell type CR2450.8. Microprocessor controlled.Application:Fit For Bosch, Kalkhoff, Impulse, Bose, Conti Content:1 x Speedbox1 x Battery1 x Assembly instruction