My Bafang Ultra Mountain Bike! Frey AM1000

Discussions related to motors other than hub motors.
This includes R/C motors, botttom bracket, roller and geared drives.
q45denver   100 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by q45denver » Mar 26 2019 7:57am

The long ones that attach the motor to the mounting shell on the chain side. I'm using a 5mm allen wrench. I may try an impact socket if I can find the right adaptor. There's nut on the other side of the bolts.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Hardcore » Mar 26 2019 8:55am

Are you able to remove the nuts on the other side of the long ones?

q45denver   100 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by q45denver » Mar 26 2019 9:16am

Yes the nuts are off

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Hardcore » Mar 26 2019 4:38pm

From my memory of opening it, there was just the removal of the bolts and I could freely remove the long bolts. There was no torque on them. But okay, let me know what you did to open it.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by garyal1 » Mar 26 2019 7:12pm

q45denver wrote:
Mar 26 2019 9:16am
Yes the nuts are off
I just recently installed one of these in a new frame. I have also pulled and installed several of these in the past. Once the nuts are removed from the non chain (left) side, then the bolts just need to be driven out with a hammer and drift punch. I use a 1/4 brass shaft as my punch to make sure I do not damage the bolts upon removal.

Be sure to support the unit if the wiring is still connected. Otherwise it will drop and pull out the wires. Don't ask me how I know this! :mrgreen:

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by competitions » Mar 26 2019 10:22pm

Hey owners, which size frame for the AM100 and how tall are you? Did it fit you as expected, or did you think a smaller or larger frame would have been better?

q45denver   100 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by q45denver » Mar 27 2019 1:22am

[/quote]

I just recently installed one of these in a new frame. I have also pulled and installed several of these in the past. Once the nuts are removed from the non chain (left) side, then the bolts just need to be driven out with a hammer and drift punch. I use a 1/4 brass shaft as my punch to make sure I do not damage the bolts upon removal.

Be sure to support the unit if the wiring is still connected. Otherwise it will drop and pull out the wires. Don't ask me how I know this! :mrgreen:
[/quote]

Thanks, I just watched a YouTube video by Backcountry ebikes on how to remove the motor that said the same thing.

bugnut   10 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by bugnut » Mar 27 2019 5:55pm

competitions wrote:
Mar 26 2019 10:22pm
Hey owners, which size frame for the AM100 and how tall are you? Did it fit you as expected, or did you think a smaller or larger frame would have been better?
I would also be interested in hearing about this. I am just over 6'2" tall and I ordered an XL as per Ivy's advice.

So, let's hear it

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Garen » Mar 27 2019 11:27pm

competitions wrote:
Mar 26 2019 10:22pm
Hey owners, which size frame for the AM100 and how tall are you? Did it fit you as expected, or did you think a smaller or larger frame would have been better?
6'4" and I got the Large frame (not XL). Reason being that L looked big enough, and if I got an XL I figured nobody else would be able to ride it. It turned out fine.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Hardcore » Mar 29 2019 6:28am

5'10'' (178 cm) and I got the M frame size (short ST + 150 mm dropper), very nimble size for me. I do have the seat all the way back and didn't cut the handlebars.

About warranty claims:
I recently broke a tooth of the 48T from my SRAM EX1 groupset, Frey/Ivy had me contact the SRAM S & S for warranty, which was all fine and they'd replace it but apparently, it has to go through the seller. Hence, I had to send the cassette back to China (60 bucks) and been without the bike for a month as it just arrived in China. Hopefully, they figure out how the warranty claims will work smoothly as also other components might need warranty claims. Not even to mention if something is wrong with the suspension. So I have just been going through some old footage and uploaded some to youtube. It seems I cannot find many people posting themselves riding the ultra bikes.

https://youtu.be/_wvaU6Cgc9c

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by mik » Mar 30 2019 4:25pm

Chulen wrote:
Feb 03 2019 12:52am
I have a Hunter model on order. Delayed 2 months due to rockshox fork not in stock. If you order one make sure shipment is ddp not dap. I order mine thru hangzhou newline tech, sales person Jerry Fang. Hangzhou Newline (Cinline Bikes)is in the same factory as Frey and the same bikes. This is according to Ivy, which is selling bikes as the Frey brand. Im going thru Alibaba. When using Aliba keep in mind chats are saved indifeniely on cell phone, but only stored for 7 days on computer. I suggest only using the Message system, not Chat on Alibaba if using computer in order to retain all communications with sales people. Paid asking price with fenders and front light added. Shipping 800 DDP method. Rockshox $135 additional over standard shock.
Hi Chulen,
did you get the bike yet?
what are the pros and cons?

q45denver   100 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by q45denver » Mar 30 2019 6:08pm

garyal1 wrote:
Mar 26 2019 7:12pm
q45denver wrote:
Mar 26 2019 9:16am
Yes the nuts are off
I just recently installed one of these in a new frame. I have also pulled and installed several of these in the past. Once the nuts are removed from the non chain (left) side, then the bolts just need to be driven out with a hammer and drift punch. I use a 1/4 brass shaft as my punch to make sure I do not damage the bolts upon removal.

Be sure to support the unit if the wiring is still connected. Otherwise it will drop and pull out the wires. Don't ask me how I know this! :mrgreen:
I got the motor out of the frame but still trying to get the nut off as shown in the attached photo. The silver one that says 35 N.M.
100_0594.JPG

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Hardcore » Mar 30 2019 7:14pm

as far as I remember its opposite thread

q45denver   100 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by q45denver » Mar 30 2019 7:24pm

Yes, It's a reverse thread and I may have over tightened it counterclockwise with vicegrips.

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SunnyDay1   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by SunnyDay1 » Mar 31 2019 6:38am

Here's the tool you need for the lock ring. Park Tool BBT-69.2 Bottom Bracket Tool Blue, 44mm
BBT-69.2_001.jpg

q45denver   100 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by q45denver » Mar 31 2019 12:08pm

Thanks. That might work except it freewheels when I turn it clockwise. I may have to reinstall the chainring and see if that helps I guess.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by joq3 » Mar 31 2019 1:07pm

Finally the weather is good enough to test my ebike which has a Bafang Ultra 1000W. I want to check out if anyone else has the same issues. The torque sensoring isn't working as I expected, it is very jerky, even if I pedal at the same rate the motor will turn off and on, shouldn't it be smooth?

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by scrambler » Mar 31 2019 2:26pm

It all depends on how it was programed.
The Pedal assist is a mixture of torque and cadence sensing.

The torque sensing is the most natural way to provide power assist as it is proportional to your effort, but could lead to what you describe, in situations like pedaling on flat, when your effort may fluctuate between zero and some, causing the assist to be on and off.
For that reason, the pedal assist also combines input from a cadence sensor, to try and smooth things out in this kind of situation.

How both are blended is a complicated thing that is done with the programming of the assist.

Depending who provided the Motor and programmed it could influence the quality of the experience.

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SunnyDay1   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by SunnyDay1 » Mar 31 2019 2:29pm

joq3 wrote:
Mar 31 2019 1:07pm
Finally the weather is good enough to test my ebike which has a Bafang Ultra 1000W. I want to check out if anyone else has the same issues. The torque sensoring isn't working as I expected, it is very jerky, even if I pedal at the same rate the motor will turn off and on, shouldn't it be smooth?
If you have the programming cable for your ultra, follow this video and see if it helps the on-off torque sensor issues you are having. Be sure to save a backup copy of your original program settings before you start making changes.

https://www.youtube.com/watch?v=kWCR3iV3d9I

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by joq3 » Apr 01 2019 4:27am

scrambler wrote:
Mar 31 2019 2:26pm
It all depends on how it was programed.
The Pedal assist is a mixture of torque and cadence sensing.

The torque sensing is the most natural way to provide power assist as it is proportional to your effort, but could lead to what you describe, in situations like pedaling on flat, when your effort may fluctuate between zero and some, causing the assist to be on and off.
For that reason, the pedal assist also combines input from a cadence sensor, to try and smooth things out in this kind of situation.

How both are blended is a complicated thing that is done with the programming of the assist.

Depending who provided the Motor and programmed it could influence the quality of the experience.
I understand that it might not be perfect on standard settings, but it feels like it doesn't work as expected at all. I actually bought a programming cable and I tested it with the default settings first ( https://imgur.com/a/g9q2X4J ) and then the settings suggested by https://www.youtube.com/watch?v=kWCR3iV3d9I and it is the same thing.

SunnyDay1 wrote:
Mar 31 2019 2:29pm
If you have the programming cable for your ultra, follow this video and see if it helps the on-off torque sensor issues you are having. Be sure to save a backup copy of your original program settings before you start making changes.

https://www.youtube.com/watch?v=kWCR3iV3d9I
Yes, I actually have a programming cable, and I tried with the default settings before trying to modify them. (Here's my default settings https://imgur.com/a/g9q2X4J ). Then I tried the settings from the video you linked and I still get the same feeling.

I feel no difference between the modes either, the Sport and Eco feels almost the same and almost no difference in help when switching through 1-5. Does anyone have a setup that works for them? And I will try it with my bike. I have no error codes (so we can rule that out).

Thank you!

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by scrambler » Apr 01 2019 11:48am

Can you describe in more details under what pedaling condition you get that.
For example, if you are going uphill putting constant pressure on the pedals, does it cut off and on?

Be as detailed as possible on all the different situation it happens.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by joq3 » Apr 01 2019 2:12pm

scrambler wrote:
Apr 01 2019 11:48am
Can you describe in more details under what pedaling condition you get that.
For example, if you are going uphill putting constant pressure on the pedals, does it cut off and on?

Be as detailed as possible on all the different situation it happens.
I will try it again tomorrow afternoon. I just did some testing in my house with the bike and I noticed a weird thing. The throttle I have on the bike which is this model ( https://electricfatbike.files.wordpress ... 00x500.jpg ) will stop working when I go past 70% throttle and the brake light will turn on. Which means it is sending some kind of signal to the engine to cut power to the motor when I go past this. Maybe it is related to the other issues I am noticing.
At first I thought this was because the End voltage was set to 36, so I measured my throttle handle with a multimeter and measured it to be 0,83V Start voltage and 4,14V End voltage. I reprogrammed the Bafang to Start voltage 11 and End voltage 42. But this did not solve my issue.

What is happening, why is it not letting me get past 70% throttle? I checked to see that the brake cutoffs weren't on, and they aren't. They only engage when I press the brake. And I also have a gear sensor, which I also checked (it has a blue LED that lights up on gear-change) and it functions as it should.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by NoFanBoiz » Apr 01 2019 4:07pm

joq3 wrote:
Mar 31 2019 1:07pm
Finally the weather is good enough to test my ebike which has a Bafang Ultra 1000W.
Just to clariy - is your ebike a Frey AM1000 or a similar bike?

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SunnyDay1   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by SunnyDay1 » Apr 01 2019 5:53pm

joq3 wrote:
Apr 01 2019 2:12pm
scrambler wrote:
Apr 01 2019 11:48am
Can you describe in more details under what pedaling condition you get that.
For example, if you are going uphill putting constant pressure on the pedals, does it cut off and on?

Be as detailed as possible on all the different situation it happens.
I will try it again tomorrow afternoon. I just did some testing in my house with the bike and I noticed a weird thing. The throttle I have on the bike which is this model ( https://electricfatbike.files.wordpress ... 00x500.jpg ) will stop working when I go past 70% throttle and the brake light will turn on. Which means it is sending some kind of signal to the engine to cut power to the motor when I go past this. Maybe it is related to the other issues I am noticing.
At first I thought this was because the End voltage was set to 36, so I measured my throttle handle with a multimeter and measured it to be 0,83V Start voltage and 4,14V End voltage. I reprogrammed the Bafang to Start voltage 11 and End voltage 42. But this did not solve my issue.

What is happening, why is it not letting me get past 70% throttle? I checked to see that the brake cutoffs weren't on, and they aren't. They only engage when I press the brake. And I also have a gear sensor, which I also checked (it has a blue LED that lights up on gear-change) and it functions as it should.
I have that same throttle on my AM1000 and it works great, better than the one that comes on the bike. It also moves the controller button closer to the hand grip which makes it easier to get your thumb on it.

Have you tried unplugging your throttle and two brake cutoffs then test riding your bike to see if it corrects the issue? If it doesn't correct the issue then you can eliminate the brake cutoffs and throttle causing problems.
Attachments
Throttle.jpg

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by joq3 » Apr 02 2019 12:48am

NoFanBoiz wrote:
Apr 01 2019 4:07pm
Just to clariy - is your ebike a Frey AM1000 or a similar bike?
No, mine is an Ansbern, this one: https://www.alibaba.com/product-detail/ ... 643ecWbVUb
The reason I am here is that this is the only active thread on the Bafang Ultra anywhere. And my bike and the Frey share many components.
SunnyDay1 wrote:
Apr 01 2019 5:53pm
I have that same throttle on my AM1000 and it works great, better than the one that comes on the bike. It also moves the controller button closer to the hand grip which makes it easier to get your thumb on it.

Have you tried unplugging your throttle and two brake cutoffs then test riding your bike to see if it corrects the issue? If it doesn't correct the issue then you can eliminate the brake cutoffs and throttle causing problems.
Yes, I really like the new throttle. I did some quick testing this morning, unplugged both brake cutoffs and that fixed the issue. So I replugged one at a time and the conclusion is that the brake cutoff for the front brake causes this issue, I have no idea why though, if it is a faulty cutoff or if a cable is frayed, but why would it only happen on about 70% throttle?
I haven't had the time to test if this solves my other issues, but I will investigate tonight!

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