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Well with advice from Flecc, Nealh and Scorpio and some careful repairs I now have my trusty flying machine back in action! A few 'red herrings' along the way just added to the satisfaction of hearing it (almost silently!) spin into action. Stripping the rotor out identified the problem? The...

Hi Scorpio, your pic of open'ed up motor (24 volt?) confirms what I think, an internal bearing...that might have sized on my motor? You comment on stripping useful, as I once open up another brushless motor...the magnets were vicious, finger choppers! So far not ordered anything as I do not know...

Hi ,Update, had another look at motor, it seems rather stiff to turn magnet/cover, which drives the sun wheel. Maybe this is the 'bumpy' action on the magnets and normal? The clearance around winding seems( with some 002" brass shim stock) more tight over on one side. With a 'mock up' of the...

Thanks for your useful advice. I am a bit confused! The fact that the bike would no longer wheel backwards after knocking/cut out. Then WOULD motor a few mins later BUT front wheel no longer able to be reverse direction made me think something mechanical had jammed? The 3 planet gear carrier...

Well, the nylon gears, whilst no missing teeth (a reason for the mysterious banging?) they looked a bit 'slack/sloppy' on the ring gear, the centre running area of the gears was probably 0.010" (ten thou) worn. The puzzle is the sun/pinion wheel carrier. It seems like a one way ratchet? It moves...

Hi Flecc, I have picked your brains a few times on this forum, always valuable guidance. Some of my moped friends now ride electrics (some are 'overpowered home built hybrid's! ) Especially as now moped'ing/biking is not permitted. Yes my MK 1 Torq, (laid up for 4 years! when original battery...

Hi Many thanks for your prompt reply. Well I could certainly remove the wheel/unplug short loom. I assume I need to remove the 6 screws and side cover? I stripped a Power bike motor once to replace a hall transistor, (with advice from here!) the magnets were finger trapping!!! Nothing looks...

Hi, my trusty MK.1 Torq has always had a bit of a growl y motor but reliable. A recelle'd battery last year gave it a new lease of life. But to day it seemed to use up battery capacity fairly quickly and motor was not pulling as well/more noisy on a 4 mile trip. Then on a gentle climb, it gave...

Pickup sensor plug tight/dry (has 7 tiny pins!) even tried wafting a tiny magnet past it but no effect on computer. can't really see it being faulty as bike has only done 200km. Cable goes into crank motor then to handlebars.....perhaps problem there, but motor functions OK. Suspect computer...

Update, the bike is probably a French built Neomouv Kalyso CD badge as 'Macadam' by Leclerc, I think Juicybikes sell them, perhaps I should ask them for advice?

Thanks for prompt reply, Macadam bikes seem to be publicized on internet, perhaps more known in France? Very nice build quality. Anyway, it was bought on an extended holiday in France. The crank motor has 4 power assist settings accessed via handle bar button pad and also by + - buttons on...

Last summer I bought a nice French build Makadam crank motor bike from Leclerc supermarket in Rennes. brought it home and done prob.done 200kms on it so far. Now the computer shows power/energy setting but no speed/distance/trip record and it has defaulted to miles display? but just shows...

Hi Jonah, big hickup ! after the wife did a proper pedal around test, even with the seat spring stem removed it is too tall for her. So, rather than chase around finding a friendly dealer I am going to put the bike on ebay after Christmas, if you have a lead to a S/H battery/charger I could add...

Hi Jonah, thanks for your offer.I will try to get the bike to a local dealer in next week or so, probably after Christmas. A used battery/charger at a reasonable price would be a good compromise. I thought the battery would be expensive, but almost £400 +£150 ish for a charger would be a bridge...

Many thanks for your comments, less electronics is fine by me and a less stressed motor sounds sensible in my case. Just hope I can find an earlier model battery suitable for the pin config. Await Derby response, thanks again, silversurfer

Thanks for your valued comments, I am not family with Ebike power units, My Torqe is 10 years old, quick enough on the level but struggles on climbs, a small dia hub motor and a large dia. wheel. Crank motors + rear hub gears seem to be answer, but spending a few hours doing some internet...

Thanks to whoever translated this message? I have checked the 5 pin config. from the front it is 1 bare, 2, brown thin, 3, white thin, 4,red thick, 5, black thick . motor no. 1779 as pics show. silversurfer

Kundenservice Derby Cycle 21:10 (5 minutes ago) to me Sehr geehrte Damen und Herren, wir bedanken uns für Ihre Anfrage und bestätigen den Eingang in unserem System. Es wurde die folgende Bearbeitungsnummer erstellt: 2018121510001101 Bitte geben Sie bei weiteren Fragen zu diesem Fall...

Many thanks to you all for your thoughts. I visited the charity shop today, they told me they get a lot of good bikes in from a prison ! Being donated from business etc. where they are serviced by prisoners, so not able to source origin. There are no visable wires to service a multi display in...

I took a few in my garage, bit dim but might help, motor pic is from underside view...it mat be missing a square central speed/computer, however there are no surplus wires to feed this? I just see one in internet pics on similar bike?