New Bafang Crank Drive 350 and 750w

[lcrewse]

Brand New Bafang Crank Drives, Have these in quantity and ready to ship worldwide, located in the USA. Have 36v 350w and 48v 750w available.

All Kits come with everything you need to get up and running except for the battery and include:

- Motor/Integrated Controller Assembly
- Crank Arms
- LCD Display and Control Panel
- 2 Brake Levers
- Half Twist or Thumb throttle
- All associated mounting hardware and cabling, all connections are waterproof, plug and play
- 1 year warranty (as long as unit has not been opened, used with incorrect battery voltage or modified in any way)

BB Kit.JPG (120.43 KiB) Viewed 14275 times

36v system specs:

350 watt rated motor
36v 18a Integrated Controller
46t Chainring
Throttle operates at 100% power with PAS on or off
User adjustable speed limiter for throttle (up to 25mph/40kph)
Large LCD Display with backlight, adjustable wheel size settings and MPH/KPH display
PRICE - $625

36v BB.JPG (137.08 KiB) Viewed 14275 times

48v system specs:

750 watt rated motor
48v 25a Integrated Controller
48t Chainring
Throttle operates at 100% power with PAS on or off
User adjustable speed limiter for throttle (up to 31mph/50kph)
Large LCD Display with backlight, adjustable wheel size settings and MPH/KPH display
Price - $750

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Also have limited supply of 36v and 48v Batteries available:

36v 11ah battery, Black (Samsung Cells) - $525

36v 14.5ah battery, Black (Panasonic Cells) - $700

48v 9ah battery, Black (Samsung Cells) - $550

48v 11.6ah, Black (Panasonic Cells) - $750

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Below is a bike I built for Interbike using the 750w drive system along with the 11.6ah battery and Nuvinci rear hub.

Black Fat Bike Med.jpg (109.6 KiB) Viewed 11320 times

[-dg]

Very interesting. But to actually build this into a bike one would need to know the chainline. Could you please add that information. Thanks.

[mwkeefer]

+1 The 48v Max Throttle 15A version, sending PM

-Mike

[usa_electrophile]

Interesting

I wonder if anyone has tried this kit and also the GNG mid drive
And can compare.

I am looking to nonhub motorize my specialized demo pro 8
I know its expensive but half tempted to get the Ego mid drive and
Lust no longer

[usa_electrophile]

Found it
viewtopic.php?f=28&t=50104

[mwkeefer]

Interesting

I wonder if anyone has tried this kit and also the GNG mid drive
And can compare.

I am looking to nonhub motorize my specialized demo pro 8
I know its expensive but half tempted to get the Ego mid drive and
Lust no longer

I will be comparing them side by side shortly, 350 isn't alot of power but then again 720w continuous is supposed to be what the US motor is intended to be... but even these do 15A continuous so it's just a matter of upping to 48v 15A if the motor can handle the thermals (the bafang)...

Now they do have a bafang 750 motor but it may be a while till you see it in retail locations, getting samples is even difficult and time consuming... the 750 continuous should be just the right balance of weight to power and maintain (with a little help) legality - even a mode they seem to have forgotten from the factory (they didn't forget, it's compliant to EU laws... under US laws you can go above 20 mph if your pedaling and not exceeding 1hp OUTPUT not INPUT power).

I should have the most wide open version that was available by mid week next week, paypal request is in my box and I'm waiting for 3 fools who owe me some $$ to push the cash in, or else I'll just payout from my checking account but on testing things (that's what this is, its me being impatient and inquisitive... I should have my own samples from China ... in just under 2-4 weeks even using EMS) and hobby side of eBikes I like to sell the old stuff and get paid before paying for new stuff with that cash

I think the gen2 would beat the bafang honestly, if you get one without a bent bottom bracket shaft so that your chain ring reminds you of an eliptical machine... the bottom bracket they used just leaves alot to be desired - like more teeth, etc.. my Gen1 were great, gen #2... they didn't just send me one with a bent axle but they forgot the damn screw and spring for the chain tensioner.... Argh!

Well I can't wait to get this 350 in an ultra light build (downtube nova baby), already setup for 7 speeds (better for thicker chain) just need to add trigger shifters instead of twist and whalla - that will be the first victim of my new Bafang Crank Drive... want to hack the controller too... adjust the max voltage and LVC and run off 48v 10A constant 15A for 30 seconds pulses... should be plenty !

[lcrewse]

4 kits left

[usa_electrophile]

Wow I would really like to try the 750 US version of the motor

[usa_electrophile]

Pm sent

[lcrewse]

3 kits left

[lcrewse]

Have one 36v kit remaining

[usa_electrophile]

Any 750 version motors on the way?

[o00scorpion00o]

Where did lcrewse go ? tried sending a PM and it said user doesn't exist ?

[LVSeBikes]

I just finished my 350w 48v 15a Bafang mid drive install on my Trek Mamba.
All I can say is I will probably never buy a hub motor again.

This motor is easy to install (you will need tools to remove your crank).
You don't have worry about rim sizes, torque arms, drop outs, broken spokes etc.
My Mamba has a 9 speed cassette starting at 11T as well as 29er rims.
The Bafang motor comes with a 48T chain ring.
29er+48T+11T = 30 to 35 mph with a motor that weighs 7.5 lbs.

It hardly looks like an electric bike.
I can't wait to try it in low gear on hills.

I am really impressed!!!!!!!!!!!

I am using a 48v SLA setup for now until I can put together a lithium battery pack.

Photos attached.

[spinningmagnets]

I'm starting to notice a trend...

[o00scorpion00o]

I just finished my 350w 48v 15a Bafang mid drive install on my Trek Mamba.
All I can say is I will probably never buy a hub motor again.

This motor is easy to install (you will need tools to remove your crank).
You don't have worry about rim sizes, torque arms, drop outs, broken spokes etc.
My Mamba has a 9 speed cassette starting at 11T as well as 29er rims.
The Bafang motor comes with a 48T chain ring.
29er+48T+11T = 30 to 35 mph with a motor that weighs 7.5 lbs.

It hardly looks like an electric bike.
I can't wait to try it in low gear on hills.

I am really impressed!!!!!!!!!!!

I am using a 48v SLA setup for now until I can put together a lithium battery pack.

It certainly looks good.

How about a few videos ?

I wonder how fast this will go with 26 inch wheels ?

Where can you buy it anyway ?

There was a suggestion that it isn't as powerful as the Bosch ?

[lcrewse]

I'll see if I can get some vid's up. I stil have a 36v and a couple different 48v kits available, pm me for more info.

[mwkeefer]

lc,

what is the maximum voltage you have tried these kits on?

any luck finding that tool for the left side of the tapered shaft - to remove the retaining nut inside?

-Mike

[lcrewse]

Have 2 48v kits available and ready to ship, one is limited and the other is not.

[lcrewse]

Sold out of initial batch of motors. Have new 36v 350w motors and 48v 750w motors on the way and will update thread with details soon.

[lcrewse]

Have New 350w and 750w drive systems in stock and ready to ship. Updated thread with the new information.

[Rollodo]

Got some more pics of it installed or videos?

[lcrewse]

Got some more pics of it installed or videos?

Here are some more pics of a 750w model installed. The difference between the 350w and 750w is only about 5mm in the width of the motor assembly.

image-2.jpg

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image.jpg

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[neptronix]

Nice... cool compact setup; i'd love to see some videos for sure, after all this time.

[Rollodo]

What is the weight and noise level, in dB? You can refer to this page for dB levels:

http://www.industrialnoisecontrol.com/c ... amples.htm