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Thanks Eddie, I saw from the other thread that you were looking for a new Panasonic unit for a member at German ebay. I guess it's me for whom you were looking. If it's the case, I really appreciate it

I'll try to take the chainguard off as suggested by Tillson and see if this is the issue. Although the rubbing/grinding/binding noise seems to be worse in the morning (with cold temperature) and gradually disappear during the day. This would indicate a grease/bearing problem (as the grease would...

I've bought it from the biggest retailer here in France. Yes the cost for the replacement unit is 500 EUR as you can see from the link]Panasonic Mittelmotor f. e-bikes / Pedelec 26 V 300 Watt f. Kalkhoff, Raleigh, | eBay. The link is for 300W motor but they also sold 250 W for the same price...

Another possibility would be to write to Kalkhoff (derby cycles) directly and explain the issue. They might understand (especially as my bike is only a month out of warranty). I would even be willing to participate in the costs of the new motor unit (as opposed of bying a new 2000-2500 EUR bike)...

Thank you flecc for a detailed advice. I'll see if I'm up to it. Maybe I'll try to ask somebody with knowledge in these matters to consult me while I'm doing it. The problem is that the bike is not falling to pieces... It would be difficult to prove that this rubbing noise is any issue at...

Hello and greetings from sunny Paris to everyone It has been a long time I haven't written on the forum (although I've been reading with interest:)). I'm in a need of little of your help with my Pro connect (Panasonic crank drive 2010 version) From this spring the motor of my bike has...

Thank you for all your suggestions. I'll check, clean and oil the transmission of my bike this week end to see if that helps. I'll let you know if anything changes. I think I can't run the motor without the chain though, because I do not have a throttle (I have a C pedelec, the motor of which...

Nemesis could not have said it better. I have exactly the same issue. Two of us having this very particular squeak (appears only when motor is turned on, disappears when turned off, does not start before 2-3 miles before motor is warmed, emitted every 3-4 pedal revolutions) seems to...

I haven't yet had the time to check my transmission. However there is one curious fact with this squeaking noise that is worth mentioning. The noise does not start right away. It only starts after 2-3 miles. It's as if it is related to the warming of the motor because when bike is left idle for...

I'm using special Shimano chain rivets to connect the chain. But as the the chain has to be joined in two places (normal chain is not long enough) there still remains a possibility of rough link/connection. Though, the fact that the squeaking only appears when pedaling with the assistance still...

Thanx Flecc for a comprehensive explanation how the system works! Considering your points, I think it should be then either transmission or the the loose bolt issue. I tend to think it is more transmission related because the noise is regular like clockwork - every 3-4 pedal revolution. I'll...

Hey Hihihi, I was thinking the same thing, i.e. that the chain might cause it, e.g. a bad link. That would explain the squeaking in every 3-4 revolution as the chain goes full cycle. I've also recently changed the chain (as well as the rear cogs; and also turned the motor sprocket around); so...

Hi, First of all I would like to say hello to all the forum members with whom I've communicated in the past and who have given very helpful advice. I'm again having some issues with my pro connect. So any help or advice would be greatly appreciated. My kalkhoff pro connect 9 G (2010) has...

Ok, no problem. You can send me the questionnaire by PM. I'll do my best to respond.

Ok Alan (kitchenman) and others, here is a map with Coulée Verte Here is also a map of some other possible bicycle routes out of Paris(including Coulée Verte in light blue). I haven't tried them all as they have been marked down by various users. So, be still vigilant and, if possible, take...

Very nice thread. As I live and work in Paris and use an electric bike, all the praise you give to the French is music to my ears. I even feel guilty of jumping the lights ever so often. On a more practical note, if you want to explore the villages and towns and landscapes south of Paris, I...

Seeing the service you have, I wish I had bought my PC from 50 cycles... I paid my chain-wheel and motor sprocket from my own pocket. But being in Paris, France, I would encounter some difficulties when sending the bike back to repairs in case of issues :) Anyway, I'm now very pleased with my...

NRG, However, on second thought, maybe there is something more to the roughness and chain jumping issue on the idler arm sprocket than only the thickness of the 9T motor sprocket. Otherwise, the owners of the hub gear versions would not experience the issue (their chains are wider that should...

Nice work NRG! You've really found the cause of the roughness symptoms. I won't be able to test your solution, though, because I don't have the equipment of thickness reduction and I'm quite pleased with the 11T & 41T setup I have now on my PC 9G LX, which obviously has also taken care of the...

That is what I was saying. As I could only observe the problem while driving the bike, I could not see that the problem originated from the motor sprocket. I only saw that the chain did not engage smoothy the idler arm sprocket, but was instead jumping on it. It is exactly what robelee saw as...