Cuthy

We have just started doing off road tours of forest trails and tracks in the Isle of Man. We use the Bergamont Roxtar 8.0 for the tours. Bosch performance line motor with manitou marvel air sprung forks. , shimano SLX 10 speed drive train and hydraulic Shimano BR-M506 disc brakes as standard. We have started an electric bike business called Green Wheels in the Isle of Man. Not sure if I'm allowed to add website but will do www.greenwheels.im The more people try the electric bikes the more they will start to catch on. I just love it!

Thanks d8veh - I did forget to mention that I swapped over wheels which includes the motor cable where it enters the axle with our other bike and the problem stayed with the bike so the motor cable does not seem to be the issue. I noticed that one of the wires of the cable to the control panel had no silicon gel securing it so I have secured it with hot glue. I need to test it on a good run.

The bike is a 2013 model so the batteries are the aluminium ones which sit on the battery plate as opposed to the new version which are integrated into the frame

Sorry about the late reply - it is a pedego comfort cruiser with 36v 15ah battery. It works but when it travels over the odd bump in the road it cuts out either for a couple of seconds or I have to give it another bump for it to re-engage. It has to be a loose wire but I cannot locate which cable is at fault

I have a bike with an electrical fault that I am having trouble fixing. The bike is a rotation sensor electric bike. The bike runs okay but it has developed a tendency to cut out usually after going over a bump in the road. it will re-engaged after about 3 to 4 seconds or I have to go over another bump to get it going. Clearly a wire is faulty but I can not seem to locate it. Below are a list of things I have tried and each time the bike has been tested the problem has remained. The throttle has always been disconnected. 1. Removed and cleaned magnetic sensor disc. 2. Replaced pedelec sensor cable. 3. Replaced control panel cable. 4. Disengaged brake sensor cables (remained disengaged) 5. Tested new cable connecting controller to motor. 6. Replaced controller. 7. New control panel and cable. 8. Swapped over magnetic sensor discs with one on another bike which worked fine. Also tested the one originally on the bike and it too worked fine. 9. Used different batteries. 10. Checked cable connections. Is there a meter I can use to test current is passing through a cable and if so what should I look for?

Mmm! Confused now. So the legislation currently restricts ebikes to 200w continuous rated output but the most commonly rated output is 400-500 watts. As you probably can tell I have no knowledge of electric motors and power ratings so was trying to understand how a 250w motor can produce the required output to satisfy the legislation or is it a case that there is no desire from authorities to act on this. I am aware that some organisations run electric bike tours - are they exposing themselves to potential lawsuits if there is a tragedy and the bikes are not performing within the legislation. Bit off topic but still related to continuous rated output.

Thanks for your replies. So if the electric motor is a 250W motor then the maximum power it will produce is 250W, however this is not realistically achieved as there is loss of power through heat and actually maybe set lower by the manufacturer as a safety measure. Does this mean that the an ebike with a 250W motor does not produce a continuous rated output of 250W - if it did it would soon fail?

What is continuous rated output and how can it be measured? Who would be able to measure it?

Tonaro Hi Nigel Think I met you last year in Peel on your bike. I am looking to purchase one and have been in touch with Powerpedals. I live in Union Mills and having driven to work every day am at the stage where I have to convince myself (and the boss of the house!) that I would commit to it! The math work out - currently £1.61 a day in petrol a day to go to work and a further £800 a year for parking - total £1100 to go to work!