Which, the Holland bike shop ones?
Bafang M500 and M600 motors
- Thread starter Rob Rides EMTB
- Start date
Waynemarlow
E*POWAH Master
Actually relooking at the ones I have shown for the 510 motor ( its a larger brother to the M600 with 160Nm of torque ) those pedals don't seem to have any way of locking the pedal to the crank like the ones we have, is it a different configuration ?
You have them here for a decent price. I guess I'll order them too and try to shorten them ...
Ebike Crank Arms 170mm Electric Bike Cranks for Bicycle Essential Parts Mid Motor Accessary Bike Crank Leg Left & Right Cranks - AliExpress 18
Smarter Shopping, Better Living! Aliexpress.com
a.aliexpress.com
I don't think any of those will fit the m600. I think we have to keep looking!You have them here for a decent price. I guess I'll order them too and try to shorten them ...
Ebike Crank Arms 170mm Electric Bike Cranks for Bicycle Essential Parts Mid Motor Accessary Bike Crank Leg Left & Right Cranks - AliExpress 18
Smarter Shopping, Better Living! Aliexpress.com
Waynemarlow
E*POWAH Master
Interesting vid discussing the M600 motor. It talks in details about the cadence bias and fast ramp up of the power and probably backs up my initial thoughts of how the torque sensing works.
Sadly if only we could play around with the bias to suit our own requirements, it would be a pretty robust and mechanically sound engine with just tad bit of porkiness about it.
www.emtbforums.com
Sadly if only we could play around with the bias to suit our own requirements, it would be a pretty robust and mechanically sound engine with just tad bit of porkiness about it.
Bafang M600S ebike motor review - EMTB Forums
Bafang are among the biggest ebike motor manufacturers. But they’re not focusing much on the European market. Many of their motors are illegal to use in the EU because the rated power output is too high and because the speed limit can be adjusted. The Bafang motors have a few advantages. Many of...
www.emtbforums.com
thaeber
Well-known member
Interesting! Is there a BMS included to balance the voltage between the 2 batteries? Or do You need to unplug the frame battery before connecting the range extender? Is it available with the connector on the picture, or DIY solution?
@Kucko these came up in a search today. Look right, and very cheap. Unfortunately still 170mm but plenty of space to be shortened.
￡11.50 21%OFF | Aluminum Alloy Bicycle Crank Arm 170MM Crankset Mountain Road E-Bike Motor Hole Crank Electric Bike Conversion Kit Accessories
I've ordered some, along with a set of pedal taps. Not quite sure what size drill I need to make the initial holes, any ideas?
￡11.50 21%OFF | Aluminum Alloy Bicycle Crank Arm 170MM Crankset Mountain Road E-Bike Motor Hole Crank Electric Bike Conversion Kit Accessories
I've ordered some, along with a set of pedal taps. Not quite sure what size drill I need to make the initial holes, any ideas?
Last edited:
33/64" according to parktools recommendation.
Yup. Got a pair of taps (both left and right thread) on the way from aliexpress also.take care, you need specific tools, the left crank have reverse thread (or right direction for UK ?)
I’m very sorry to tell you these don’t fit m600. The crank wil hit the engineblock on the left hand. For m500 there is no problem. I can tell out of own experience
? i have the two and they have the same crank arms ? ok. the link don't propose the original crank arms. i speaking about the OEM cranks
Ah balls! Can this be resolved by "tuning" (read filing) the crank, or is it an insurmountable problem?
You could grind were it hits but it wil make it a little more prone to flexing I’m afraid. I chose not to do that and sold them with my m500 engine.
the crankset you bought is less wide as the standard m500/600 set. That’s why it’s touching the engine.
Can’t you stop the order at AliExpress? You can do that as long as they didn’t ship it.
the crankset you bought is less wide as the standard m500/600 set. That’s why it’s touching the engine.
Can’t you stop the order at AliExpress? You can do that as long as they didn’t ship it.
Sad, sad news! How much material are we talking about here?
ouch...that looks like a lot of work.
Eeek. Ah well, given that I'm bound to cock up the first foreshortening I attempt then I'm not too shy of a bit of filing. I'm also lucky enough to have access to a pretty decent engineering shop so will be able to get the cranks blasted and refinished once I'm done.
Hi guys,
Still having problems with my M600... I've now been sent the BESST tool (without a login) to be able to calibrate the new controller they sent me, which should hopefully get rid of the violent shuddering at least. Does anyone know if there's a generic login (for example the login details above)? This has been going on for such a long time I'm half toying with the idea of sending the motor to Bafang to be checked over (although I've now probably ruined my warranty thanks to Dengfu advising me to change my controller
). Either that or I'll have to just buy a new motor and sensor and hope it fixes the problem...
@GandalfR @Sheff73 it's dead easy to bypass the BESST login screens and gain full access to the tool. There's a webpage all about it here.
In short:
1) Download and install Python3
2) Install the simplejson package using pip (sounds hard but isn't, just google it and follow the instructions).
3) Download the loginbypass.py script from the page I linked above.
4) Edit your host* file and add "test.api.besst.bafang-service.com 127.0.0.1" to the end of it (no quotes).
5) Run the loginbypass script.
6) Open the BESST app
7) Put anything you like in the username and password fields.
Assuming you're on Windows, this will be in C:\Windows\System32\Drivers\Etc and will be a file called "hosts" with no extension. You'll need to edit it in administrator mode - the easiest way is to run a command prompt window as administrator and then type "notepad c:\windows\system32\drivers\etc\hosts" alternatively Google this one too, there will be loads of guides on how to edit your hosts file.
Note: nearly forgot, the page I linked mentions installing a package called socketserver also. You don't need this.
In short:
1) Download and install Python3
2) Install the simplejson package using pip (sounds hard but isn't, just google it and follow the instructions).
3) Download the loginbypass.py script from the page I linked above.
4) Edit your host* file and add "test.api.besst.bafang-service.com 127.0.0.1" to the end of it (no quotes).
5) Run the loginbypass script.
6) Open the BESST app
7) Put anything you like in the username and password fields.
Assuming you're on Windows, this will be in C:\Windows\System32\Drivers\Etc and will be a file called "hosts" with no extension. You'll need to edit it in administrator mode - the easiest way is to run a command prompt window as administrator and then type "notepad c:\windows\system32\drivers\etc\hosts" alternatively Google this one too, there will be loads of guides on how to edit your hosts file.
Note: nearly forgot, the page I linked mentions installing a package called socketserver also. You don't need this.
Last edited:
On another note, the cheap aliexpress cranks linked a few posts above arrived today, and as @Sandur-Rx suggested, they don't quite fit on the left hand side.
I don't think it's quite as bad as suggested though. Here's the clearance between the crank end and the motor:
Not exactly spacious, but rotates just fine. Here's the more problematic area:
Oops, might have slightly scratched that logo....
Here's the root cause:
That's with the 'pedal ends' lined up and the new cranks on the left. Basically that round shouldery bit at the top of this image is about 3mm too short on the new cranks. So options are:
1) Get filing. Not too big a deal as shortening the cranks is going to require refinishing them anyway, but annoying nonetheless.
2) Extend that shoulder in order to make the crank sit a little prouder from the frame.
Might get the 3D printer on the case. Possibly ill-advised, but appears mechanically.....ok....I think....
Oh and here's a template that roughly shows the length adaptation that I plan to make to the crank:
This will subtract about 25mm from the overall length which would give a 145mm crank. I suspect I could fairly easily get to 150mm by reducing the 'meat' at the crank tip. Not sure whether a longer or meatier crank is more desirable though....
I don't think it's quite as bad as suggested though. Here's the clearance between the crank end and the motor:
Not exactly spacious, but rotates just fine. Here's the more problematic area:
Oops, might have slightly scratched that logo....
Here's the root cause:
That's with the 'pedal ends' lined up and the new cranks on the left. Basically that round shouldery bit at the top of this image is about 3mm too short on the new cranks. So options are:
1) Get filing. Not too big a deal as shortening the cranks is going to require refinishing them anyway, but annoying nonetheless.
2) Extend that shoulder in order to make the crank sit a little prouder from the frame.
Might get the 3D printer on the case. Possibly ill-advised, but appears mechanically.....ok....I think....
Oh and here's a template that roughly shows the length adaptation that I plan to make to the crank:
This will subtract about 25mm from the overall length which would give a 145mm crank. I suspect I could fairly easily get to 150mm by reducing the 'meat' at the crank tip. Not sure whether a longer or meatier crank is more desirable though....
Mabman
E*POWAH Elite World Champion
This could already be answered but the M620 cranks are a standard ISIS and the M600 are a non-standard. Paging @rtp to the crank hotline as he sourced some 150's for his M600.
I on the other hand have the former and got some Miranda 155's easily and cheaply enough. After fitting them I found that they are a very significant improvement over the stock 170's in that while they offer less chance of strikes they also interact much better with the Bafang PAS combo of cadence/torque sensing. In fact I am even considering sacrificing my stock cranks and making them 140's just to see if even shorter makes any difference in pedaling efficiency. It will further insulate against strikes also but let's face it paying attention to the trail is the best defense.
I on the other hand have the former and got some Miranda 155's easily and cheaply enough. After fitting them I found that they are a very significant improvement over the stock 170's in that while they offer less chance of strikes they also interact much better with the Bafang PAS combo of cadence/torque sensing. In fact I am even considering sacrificing my stock cranks and making them 140's just to see if even shorter makes any difference in pedaling efficiency. It will further insulate against strikes also but let's face it paying attention to the trail is the best defense.
I bought the same set of crank arms a while ago and found out the hard way that they don't fit the M600 (even though they're advertised as fitting!).
On a side note - I was clouting the pedals all the time when the bike was setup 'mullet' but now I've gone 29" front and back the issue has pretty much gone away... its obviously true what they say - the extra inch makes all the difference!
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