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  1. N

    BMC V4C kit motor wheel noise!

    In late February of this year I took delivery of a BMC V4C kit from Ilia Brouk of [ ebikessf.com ]. The kit is awesome in use at [ 48V and 20A ] but lately a noise has developed. After testing on different platforms the source of said noise is definitely the motor wheel itself. The noise is a...
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    LI-ion NiCoMn Battery from BMSBattery

    I have two kits currently. An eZee and a BMC. Both installed on a Giant platform. Seen here... http://www.giant-bicycles.com/en-ca/bikes/model/sedona/9786/49386/ My two NCM packs I switch from one bike to the other as needed. Until I buy two more packs which I'll do soon. In use I fully...
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    LI-ion NiCoMn Battery from BMSBattery

    I prefer the BMSBattery products. Suit my needs and at a reasonable price. The packs are well-constructed single units complete with advanced BMS. Charger included. The specs overall meeting, again, my needs. As for weight? I tried numerous times to submit a comment but with no success...
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    Ezee 400 watt Rear Geared Motor vs Competition

    I have no personal experience with MAC and thus the reason why no earlier reply. I thought an experienced other/others would reply. Here's where I sourced my BMC... [ http://ebikessf.com/ ] Ilia Brouk being the owner/operator. Very professional. Very helpful. Chat with him via e-mail and...
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    Ezee 400 watt Rear Geared Motor vs Competition

    I have both an eZee and a BMC V4C [ both rear 26" ] and am pleased with both. Both purchased in the last year. The eZee from Grin Cyclery. The BMC from Ilia Brouk [ Ebikes SF ]. Each is operated at 48V20A. The efficiency of each being awesome! Two 48V20Ah [ Li-Ion NiCoMn ] batteries from...
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    LI-ion NiCoMn Battery from BMSBattery

    Affirmative. I have two of the 48V20Ah battery packs and two of the Falcon EV bags. The packs do fit with room to spare for wiring and such. I purchased the two packs at different times. Taking delivery of the first pack in November 2011 and the second in January. The first used [ 6665143 ]...
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    BMC V4C geared hub motor test ride.

    Okay. Finally got things sorted out. The sharp minds here were right once again. CA RShunt value was set originally at 2.31 mOhm. Which, seemingly, is the correct setting for the original Lyen controller which was again problematic in use. The replacement Crystalyte controller, on the other...
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    BMC V4C geared hub motor test ride.

    I can't speak to a direct comparison between BMC geared motor series but it is worth noting that Ilia's testing involved the V4T and a Lyen controller over strictly uphill terrain. As for the involved bikes? Same platform. Giant Sedona LX [ 2012 ]…...
  9. N

    BMC V4C geared hub motor test ride.

    Yep. The presented numbers are indeed accurate. Both kits coming complete with a Cycle Analyst unit. The ride route I took being one that I ride often. Am totally familiar with. And I was told to expect improved efficiency over the previous BMC geared motor series but while I waited to take...
  10. N

    BMC V4C geared hub motor test ride.

    Took delivery recently of a kit based on the new BMC V4C geared hub motor. A 26" rear wheel build to be run at 48V and 20A. Purchased from Ilia Brouk of [ Ebikes SF ]. Initially, the kit was to make use of a Lyen 12FET sensored controller but as it turned out there were problems. Controller...
  11. N

    Magura Hydraulic brake switch

    Rear and Front available. [ 160mm rotor only ] With some re-wiring necessary for some systems... [ Sensor control designed for Bion-X system ]...
  12. N

    Diodes and charging question…

    dnmun, Appreciate the input. Though I've read several instances of your diodes perspective during my time here so I'm familiar. And you are right as I, myself, have recently gone the parallel route without diodes. Two BMSBattery 48V20Ah packs. And all has been fine. No theatrics. No drama. No...
  13. N

    Diodes and charging question…

    With my newest e-bike almost complete I've decided to order a couple of batteries from Li Ping plus some diodes. I intend to go the diodes route in parallel connecting two 48V 20Ah packs. And with this in mind I asked Li Ping about the involved wiring and whether the packs could be charged...
  14. N

    Throttle wiring questions...

    Thanks for the replies. On the subject of parallel connecting two identical 48V20Ah battery packs, for discharge purposes, I contacted Adam at [ http://www.ebikes.ca ]. The battery packs seen here… http://www.bmsbattery.com/48v/249-48v-10ah-lithium-ion-electric-bicycle-battery-pack.html And...
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    Throttle wiring questions...

    sangesf… You're very welcome. Was the least I could do considering the time and trouble you went to to provide me with a welcome degree of peace of mind. And if yourself and Rassy would be so kind I'd like to ask for your collective insight in the following matter... Soon, I'll have two...
  16. N

    Watts happening?

    Thank you for the replies. Was great to be able to relate to what folks had to say in general as regards personal riding experience and cadence issues, etc. and equally great to understand the physics, etc. involved in what I observed. All input was greatly appreciated. These boards are an...
  17. N

    Watts happening?

    Today I observed an interesting phenomenon that I'm hoping the more experienced and knowledgeable folks on this board can, and will, explain. Firstly... I have an e-bike that consists of a Trek Navigator as seen here...
  18. N

    Throttle wiring questions...

    Thanks once again. And an interesting discussion. I'm going to make things simple by placing a custom order for a 30 Ah pack. The dimensions of which will be 16.7" x 5.75" x 2.5" and will fit nicely in the battery bag I intend to buy. The [ Large ] version ...
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    Throttle wiring questions...

    In sub-zero Vancouver, B.C. Rather be where you are. ;-) And no worries. Connections make it cost-free for me. And if you don't mind I'd like to ask you a question about batteries. My primary battery at the moment is the one I earlier referenced...
  20. N

    Throttle wiring questions...

    Thanks. And five? You're hooked, are you? ;-) Definitely a solid e-bike platform. And the switch has launched. Airmail. [ Friends in high places. ]
  21. N

    Throttle wiring questions...

    Thanks once again. And quite the machine. An awesome setup for sure. Nice job. And probably not the question you were expecting, but… From where did you source the seat? As for the switch? Send me the mailing details and it's yours.
  22. N

    Throttle wiring questions...

    Excellent once again. The level of detail you provide is greatly appreciated. Goes a long way toward furthering my understanding in general. Being of great import to me. I purchased an eZee kit, locally, some months back and the installation of same was as straightforward as one could ask for...
  23. N

    Throttle wiring questions...

    Very impressive. Greatly appreciated. The time and trouble you took going into such great detail. The obvious level of involved expertise. An obvious rare gift for clear and lucid explanation. Thanks kindly. I wasn't looking forward to a 'trial and error' installation. The prospect of...
  24. N

    Throttle wiring questions...

    I recently purchased a Bafang BPM 48V500W Rear motor kit. Inclusive of the thumb throttle seen here… http://www.bmsbattery.com/ebike-parts/54-thumb-level-throttle-with-battery-meter-and-a-switch.html And as you might guess the actual unit wiring differs from the stated specs which are as...
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    Parallel connecting nonidentical batteries.

    Need some help. I bought an eZee kit recently. The included battery is a 48V10Ah LiMn as seen here… http://ebikes.ca/store/photos/48V10_Upgrade.jpg I also have a 48V20Ah Li-Ion NiCoMn battery as seen here…...
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