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  1. EZgo

    shaft removal on a 9c stator

    Has any body ever removed ever removed the axel/shaft from the stator of a direct drive hub motor in order to swap it out whith another identical stator? Specificaly I have 2 2015 9c hub motors. An unused front 10x6 hub and a used rear 10x6 hub that has a bad stator. It looks straight forward...
  2. EZgo

    phase wire order

    Amberwolf, This is a new post that refers to an old post back on March 2022. You where helping me with my 2014 10x6 9C rear drive direct drive that needed new halls. The wiring had gone bad & blew the halls. Everything you told me was spot on, unfortunately I solderd the halls on the wrong side...
  3. EZgo

    source for hall sensor mounted on PCB & wiring

    I rewired my 2014 9c motor cause the insulation had gone bad on 1 of the phase wires & 2 or 3 of the signal wires. This motor had always run great until it didn't. I bench tested it today using a spare controller & throttle & got nothin. Apparently the bad wiring caused 1 or more of the hall...
  4. EZgo

    sharing the blk thermistor wire with the blk hall sensor wire.

    I'm rewiring an older (2014) 9C direct drive hub motor. I'm also installing a thermistor in it. Searching through the tech forum it sounds like I can share the black thermistor wire with the black hall sensor wire. If that can be done can I solder it directly onto the hall sensor board along...
  5. EZgo

    72v Controller suggestion

    I need some controller help. I need to replace my Lyen Edition 12 x 4110 MOSFET extreme moder controller. I run a 72V 12ah battery, A 9c DD hub motor controlled by a Cycle Analyst V3. The battery was new last year everything else is from 2015. Controllers don't seem to be as easy to find as I...
  6. EZgo

    9C direct drives runs on 48V but not72V. HELP

    A FINAL PUZZEL FOR 2021! Is it possible for a direct drive 2013 9C hub motor to run fine at 48 volts but not on 72 volts? (jerks/vibrates forward or backward) Please read below. This bike has run better than perfect for me for 3 yrs. at 72 volts through a 100amp Lynn Extreme Controller & a V3...
  7. EZgo

    72v Controller suggestion

    Hi folks. I am an ebikekit.com dealer (https://www.ebikekit.com/) that has been out of the bike business for about 5 years now due to a medical issue. I am looking for a 72V 100 amp controller from preferably someone that could help me sort out the wiring and maybe even install the proper motor...
  8. EZgo

    Rim brake toe-in setting

    I JUST INSTALLED A NEW SET OF KOOL STOP DUAL COMPOUND MOUNTAIN PADS. Although I never had an issue with the standerd V- Brakes pads on my e bike I installed these for greater all weather stopping power. After recently bumping my Lyen controller from a 30 amps setting to 40 amps & raising my top...
  9. EZgo

    hub motor wire insulation repair

    I just posted a wire identification issue on a 9C hub motor that has been answered but I have another question about repairing a cut in the insulation of 3 wires. I thought posting a new thread would be the prudent thing to do. In order to get 2 thermistor wires through the axle slot I removed...
  10. EZgo

    hall wire question. 5 or 6?

    I have A 2012 9C HUB MOTOR with 6 HALL WIRES & the white wire came off the little circuit board. (I THINK) This is 500 to 1000 watt 9c that Ebikekit.com uses. Pictures attached. I was making some wiggle room to install the thermasistor wires through the axle slot when I suddenly ended up with...
  11. EZgo

    4 new sla batteries w/open cells

    I have 4 dead sla batteries that I purchased to build a 48 volt battery pack for one of my customers. I know what the problem is as I have had it happen a number of times over the years. What I have never expeieranced is having 4 of these puppys go bad all at the same with no evidece of improper...
  12. EZgo

    Crystalyte 408 has a mild vibration

    Good morning, I have a 5 yr old have a 5 yr old Crystalyte 408 hub motor that started to make a very mild vibration under load about 4 months ago. The motor is part of a 36 volt Go-Hub conversion kit that has worked & still works perfectly. The motor probably has between 300 to 400 miles on it...
  13. EZgo

    cut wires on a hub motor

    Is it economically feasible to repair the wires in this gear drive hub motor. It's a EB36V20 - 240W08080691 in case my pictures don't appear. It is from a Ecobike Vatavai that belongs to a customer. I made no promises but thought it was worth the time to remove it & open it up. I knew it would...
  14. EZgo

    Suggestion for lipo batteries

    I need some help in choosing some lipo batteries to make an extral pack for extending my range. I am currently running a 22" Marin Pioneer Trail with very tall gears. I'm using the 750 to 1000 watt EBikeKit Hub Motor (9C clone) and the Lyen Edition EC124110 controller set at 30 amps. This all...
  15. EZgo

    Question on safe min. LiFeP04 voltage & Bamboo Pics

    I have 5 fully charged 12V 10ah LiFeP04 SLA Bamboo Replacement Batteries from Clean Republic. Each one puts out 13.7 volts according to my Fluke meter & between 13.76 & 13.79 with my Watts-Up meter. Since These do not have a BMS I use a Watts-Meter to monitor battery health. I charge these...
  16. EZgo

    Using SLA chargers for LiFeP04 batteries

    It's a great day for an e-bike ride. This is a charger question. I have been testing & using 12V 10Ah LiFePO4 (Bamboo) Batteries from Clean Republic with positive results.http://www.electric-bike-kit.com/lithium-12v-lifepo4 sla-replacement These are a 12V 10 amp SLA replacement battery. They...
  17. EZgo

    Re: Lithium battery manufacturer question

    Has anybody ever heard of or used batteries from Qinhuangdao Xinchi Photoelectricity Technology Co.,Ltd.?http://xinchibattery.zxq.net/ebikebattery.html ? With the help of this forum I have narrowed my search for a small purchase of 10 Lifepo4 battery Packs down to a small handful of suppliers...
  18. EZgo

    LiNiMnCo versus lifepo4 from USA or China.

    I'm an e-bike enthusiast & small E-BikeKit Dealer in PA. Although I have a web-site through which I sell E-BikeKits & bicycle accessories through amazon the only "real" income I make is selling the e-bikes I build using Jason's kits, Ridekick trailers. & service & repair work. This year I really...
  19. EZgo

    Bad LiFePO4 cell after 2 hrs. use

    What will cause a brand new Headway 38120S 3.2v LiFePO4 cell to drop to 1.4v after only 2 hours run time & 3 charge/use cycles? I am using the 120W 29.2V 2.5A charger that came with this 8 cell 24v LiFePO4 DIY battery pack that I assembled. I am new to lithium batteries but not electronics...
  20. EZgo

    geared motor rotation

    Hello every one. I'm ashamed to say I've been using & reading Endless-sphere for some time now but have never participated. I'm new to this forum so please tell me if I'm asking this question in the wrong place. I have done a search for my questions and read F.A.Q = All the Basic Stuff - Read...
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