BMC hub motor Ebike conversion kits from $400

[TPA]

As far as I can tell, Ilia only checks this forum occasionally. Send him a PM. This will also go to his email, which gets checked more frequently.

[The Mighty Volt]

As far as I can tell, Ilia only checks this forum occasionally. Send him a PM. This will also go to his email, which gets checked more frequently.

Coolio...thanks for the heads up!

[electrikiwi]

I just want to praise illia I purchased one of these kits and it is every thing promised!! illia communicated well throughout the transaction especially since I live in New Zealand. Anyway just want to thank illia for all his help and say to others this is a great deal.
electrikiwi

[ebikes-sf]

Guys, thanks for your feedback, really appreciate it!

And sorry for delayed response to this thread. TPA is right, I only look at this thread occasionally, but I usually respond to PM or ibrouk@hotmail.com within 24hrs (unless I'm out of town). Also, please feel free to call 415 595 6417.

Update:
V2S, V2T, V3, 35A Crystalyte controller, CA, throttles are available. I also have Crystalyte cruise control and break handles for extra $35.

Currently I'm working with Justin from ebikes.ca to hook up CA to 50A BMC so that CA controls the throttle signal (rather than throttle override). Once it's figured out (will share details), I will be offering a kit that includes BMC V3 with modified phase wires, CA and modified BMC 50A controller. Stock V3 and 50A controllers are available now but both are likely to burn when operated at full throttle. Need a couple more weeks.

ilia

[fany]

I have a different controller with the same motor and at 1000w for ½ mile the motor isn't even warm. I run mine @1500w all the time with no heat problems. Max watts shown on my watts-up is 2400

Nick

Could you please tell what your controller is?
As you may know,many controllers working with BMC V3 motor will get very hot.

[nicobie]

I use a 36v -72v 35a clyte analog controller that I bought from Ilia. I added a few cheap computer heat sinks and stuck them on the top of the controller and now everything runs cool as long as the controller is not inside a bag and is exposed to the air.

This is on a v2-s.

[oatnet]

oops

[nightowlgk]

Newbies and Tidal Force /E+ refugees , look no further, Ilia is the best source, IMO, for BMC/geared, reliable motor kits that blow away the vast majority of hub motors.

His followup and service on warranty issues has gone beyond the call of duty. - I blew a clutch on a V2 Sp. The fact that he and Justin at ebikes.ca are collaborating, is proof that he is on the front edge of making things work right.

NGK

[Dan]

NGK,

WHy do you think the BMC design is better than a Tidalforce ot E+ system?

Dan

[ebikes-sf]

Some cons and pros of geared hub vs direct drive hub like crystlyte, tidal force, golden motor, A2B, etc.

Pros:

Higher torque especially at low RPMs

More top speed

More efficiency due to higher motor speed

More power per weight ratio

Freewheeling

Cons:

More moving parts = less reliablility

Higher cost

No regeneration (because of freewheeling) - however regenration from smaller hub is insignificant anyway

Not for heavy offroad use

General user experience after trying geared motor like BMC is: going back to direct drive is a big step down regardless of cons listed above.

[Lyen]

Some cons and pros of geared hub vs direct drive hub like crystlyte, tidal force, golden motor, A2B, etc.

Pros:

Higher torque especially at low RPMs

More top speed

More efficiency due to higher motor speed

More power per weight ratio

Freewheeling

Cons:

More moving parts = less reliablility

Higher cost

No regeneration (because of freewheeling) - however regenration from smaller hub is insignificant anyway

Not for heavy offroad use

General user experience after trying geared motor like BMC is: going back to direct drive is a big step down regardless of cons listed above.

Hello Ebikes-sf! I have been focusing on your threads all the time and notice that you are an honest seller who also happen to be in the San Francisco area. I am personally looking for a hub motor with the drop out width of 130mm for road bikes. I believe the BMC motor is optimized to attack most of the hilly area in San Francisco with its internal gears which is what I need for commuting to work. Do you have anything available for it? Thanks!

[ebikes-sf]

Hi Lyen. BMC rear motors are designed for 135mm dropout, and front motors for 100mm. I don't have any rear motors that would work with 130mm dropout. It's possible to grind down the axless to fit 130mm but I don't have any experience with that. Another alternative is to stretch the frame by 5mm if it is made out of steel.

[ebikes-sf]

For some reason my outgoing e-s messages get stuck in the outbox. grimbasement, sorry, I'm not able to reach out to you. Please email me at ibrouk@hotmail.com to get a response.

[amberwolf]

Anything "stuck" in your outbox simply means the recipient has not checked their PMs.

[snath]

A couple of weeks ago, ilia slogged his bike halfway across San Francisco in the rain to show my son and I his motor kit. He was very helpful and I subsequently placed my order. Today, my order arrived nicely packed and all the bits were there.

I'm sure it will work great on the Long John cargo bike I'm building.

Hats off to ilia for a great kit and superb customer service.

Thank you.

[scriewy]

can any 1 tell me ilias paypal ?
thanks

[oatnet]

can any 1 tell me ilias paypal ?
thanks

PM him...

[scriewy]

i did something better, emailed him where he answers pretty fast, but he didnt get to it yet for what ever reason, and i must pay while i can b4 my account hits the limit till next salary.

he rarely checks PMs as mentioned in this thread.

[TPA]

he rarely checks PMs as mentioned in this thread.

Incorrect....He rarely checks this thread.

If you PM him, the board will send him a notice via email, which he checks more often.

[ebikes-sf]

Sorry for any delayed replies, I was busy figuring out how to improve V3 kit and it's finally available.

I gave up on trying to feed thicker phase wires through the axle and
followed general practice of running 10ga wirer from axle base to the controller (wires will be covered with spiral wire wrap), it works quite well:


Also moded 50A controller so that direct plugin Cycle Analyst can be connected to the controller and use its shunt to mesasure current and override throttle signal to limit current. I recommend setting current limit in CA to about 35A then increasing it to some reasonable level that depends on terrain and outside temperature. Without limiting current, even with thicker phase wires, running motor at full throttle is not safe. Remeber that motor is rated by manufacturer at 1000watts so at 50V that would be only 20A. In my opinion it shouldn't be run at over 1500-1600watts.


Here are the prices:

$815 for kit including:

V3 motor with upgraded phase wires wires (no rim or spokes)

50A BMC controller with CA mod Direct plugin Cycle Analyst calibrated to the controller

Throttle

Shipping is by USPS Priority:

Local pickup in SF $0

West coast $25

Midwest $35

East coast $40

Canada $60 (may vary depending on region)

Europe $80

Australia $90

New Zealand $100

Payment and fees:

Check - no fee

PayPal echeck - $5 fee. (PayPal echeck option shows PayPal account only if these two conditions are met: 1) checking account is linked to PayPal account, 2) there are no credit cards linked to PayPal account. Since fee for echeck is maximum $5, PayPal likes to hide it, so that payer is forced to use instant transfer and payee charged 3-4% of transfer amount.)

PayPal instant transfer - 3% fee

PayPal instant transfer from non US bank - 4% fee

PayPal ID and my email: ibrouk@hotmail.com

Note that V2 kits are still available, details on top of this thread.

For any questions, please feel free to email or call 415 595 6417

ilia

[auraslip]

Sorry I'm late, and this maybe a question that should be obvious but; what type of performance could I expect from this kit when limited to 35amps?

With 48v 20ah lifepo4 cells what would be full throttle speed on the flats?

What about 36v 20ah?

[Sacman]

This system does very good even limited to just 35 amps. The 50amp controller is kind of overkill but it's always nice to have that extra "headroom". I'm only running at 36v but I can easily maintain a top speed of 32mph on the flats with just 23 amps (that's roughly 800-900watts). It only peaks at 45 amps breifly when accelerating to that speed. And if you're running at 48v you could accelerate the same with even less current... plus... you would have a higher top speed of 40mph.

Sorry I'm late, and this maybe a question that should be obvious but; what type of performance could I expect from this kit when limited to 35amps?

With 48v 20ah lifepo4 cells what would be full throttle speed on the flats?

What about 36v 20ah?

[electrikiwi]

I just say that I bought one of these kits and not only is it the best deal for money that I could find anywhere on the net, but the service has been outstanding I live clear across the world in New Zealand and didn't really expect much illia has gone way above any kind of expectations with both communication and aftercare service. I cannot recommend him enough. If you want a kit that will tackle any hill that you throw at it like I did, then the torque version is the one for you.
Thanks again Ilia hope to have a picture up soon.

[NeezyDeezy]

Can people who have been using the new V3 motors elaborate on how much sound they make? The V2 are way too noisy for my purposes. I've found a 9C motor at low current high volts is the most silent (and what I used now), but I'm looking for a smaller hub for more stealth.

[ebikes-sf]

There is no significant difference in noise between V2 and V3, gears are exactly the same, just different wire gauge in windings and supposedly little stronger clutch on V3. BMC motors do emmit some noise at lower speeds but considered to be pretty quite by most users. Motors with high milage can get noisier.