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as new,had next to no use and the reason for sale is i have a e-mtb that i mainly ride,£1900.

clipless pedals,when i was racing mtb in 1991 and shimano introduced the original spd`s it was a game changer.

x 2 taken off a new bike,£20 each.

i have had a new motor fitted by 50c with the latest software,shame about the breakage but even so i think the impulse drive is easily the most powerful mid drive available and with the 17ah battery the longest range,i have tried them all and my other bike with a bosch performance line motor...

new price £2000 no offers,mint condition.

the 2016 500 wh battery has 25% more range not more power,the motor on the haibike urban is powerful enough and i ride mainly on the road with a little towpath and smooth trails,it has rigid forks.

i have a 2015 haibike urban with the performance line motor,badass dongle works and takes the speed limit up to 50km/h but placing the magnet on the frame to pick up a signal off the crank throws up a 503 speed sensor error code,great bike and good performance with quite a good range as i ride...

All i can see happening is that yes all the manufacturers will get together against tuning but the bikes will still get dongled as they are available in other european countries,the only way is to get the motor designers to make the software tamper proof if that is possible?

Mine went bang this morning with a loud clacking noise as described followed by the cranks feeling like the motor was seizing up inside,2015 speed 2 impulse motor,now for all the faffing about getting a new motor but still a great bike even so, the reliability seems a bit hit and miss.

I agree that the panasonic motors in the earlier kalkhoffs were very reliable but i now have the impulse 2 speed motor bought in may this year ,it now has 5000km on it that have been ridden hard with no problems or noises,does the speed and legal versions have different internals because it has...

riding the integrale s11 with the carbon belt drive was a surreal experience after only ever having chain drives,silent transmission of power with almost no motor noise and it was in the highest power mode,maybe in the future more and more e-bikes will be fitted with belts or even shaft drive.

i had to visit 50c for a charger for my focus so while i was there i had a ride round the car park on their demonstrator,setting off with the belt drive felt instant as if the cranks are on the rear wheel axle and the drive was silent,the thought of low maintenance and lack of oil mess is a pro...

the latest belt drive bikes look very attractive with the promise of long service life with clean and quiet operation,does a belt drive cause more drag and friction absorbing precious watts compared to chain drive and what is the procedure in the event of rear wheel removal.