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.
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Richard N   10 W

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Richard N » Sep 18 2018 8:25pm

Hillhater wrote:
Sep 18 2018 5:44pm
Does anyone do stress analysis or stress tests on these new frames for integrated motors ?
The motor mount/bottom bracket area visually looks weak and flexible compared to a conventional diamond frame bottom bracket with 3 main tubes joining the bracket tube.
I would expect flexing possible cracking after a few months of off road use.
JMHO .!
Just looking at the thickness and shape of the motor mount, it really dosen't look like it would flex much, if any. Especially once you bolt the motor into place which is pretty much turning the mount into a solid chunk of aluminum.

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Hardcore   100 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Hardcore » Sep 19 2018 5:16am

Hillhater wrote:
Sep 18 2018 5:44pm
Does anyone do stress analysis or stress tests on these new frames for integrated motors ?
The motor mount/bottom bracket area visually looks weak and flexible compared to a conventional diamond frame bottom bracket with 3 main tubes joining the bracket tube.
I would expect flexing possible cracking after a few months of off road use.
JMHO .!
No problems after 5 months of off road (ab)use :)

Ender2000   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Ender2000 » Sep 19 2018 11:49pm

Hey guys,

I was wondering if anyone could give me the measurement of the frey battery from end to end. I have a different alibaba ultra max bike, and my battery pack is only 16.5 amps (48v). I am very interested in the 21ah battery for the increased range.

For reference, my battery runs approximately 457mm end-to-end.

Ender2000   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Ender2000 » Sep 19 2018 11:49pm

P.S. Does the battery stick out on the sides or is it flush with the frame?

kerim   10 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by kerim » Sep 20 2018 5:14am

Ender2000 wrote:
Sep 19 2018 11:49pm
P.S. Does the battery stick out on the sides or is it flush with the frame?
Sticks out on the left

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Ivanovitch_k   10 W

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Ivanovitch_k » Sep 20 2018 2:19pm

the 21Ah one does, the 17.5Ah 48V does not tho.
BBS'ed Radon ZR Team 8:
BBS02B 750W - DPC750C - 48V 17.5Ah GA shark - 11 spd 11-40 Shimano XT, 42T N-W Precialps CW, KMC X11e chain, Gearsensor, XT RD, XTR Shifter, F Saint Brake, R XT Brake, RT99 200/160 Discs, magnetic shutoff, DT Swiss X1900 QR9 wheels, Manitou M30 air fork, 2.4" slick balloon schwalbe Super Moto X tires @2 bars, Suntour NCX suspension seatpost, ergon SFC3 saddle, ergon GP3 grips, Supernova M99 Pro + E12 Taillight

Ender2000   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Ender2000 » Sep 20 2018 8:14pm

Does anyone else feel a bit of a lurch to one side when the motor is engaged?

TOLM   10 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by TOLM » Sep 21 2018 3:33pm

Ender2000 wrote:
Sep 20 2018 8:14pm
Does anyone else feel a bit of a lurch to one side when the motor is engaged?
Welcome to full suspension e-bikes (( rear triangle is moving. Effect is less pronounced with hardtails.

Ender2000   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Ender2000 » Sep 23 2018 11:44am

TOLM wrote:
Sep 21 2018 3:33pm
Ender2000 wrote:
Sep 20 2018 8:14pm
Does anyone else feel a bit of a lurch to one side when the motor is engaged?
Welcome to full suspension e-bikes (( rear triangle is moving. Effect is less pronounced with hardtails.
Ah, yes, I am new to this. I'm having some shifting issues and was wondering if this would be a contributing factor. I'm upgrading to an ex1 derailleur this week in hopes of less popcorn popping when I go outside of my middle gears.

Hardcore   100 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Hardcore » Sep 23 2018 1:36pm

I am adjusting my gears almost every (two) rides not to have them pop over. With this power, it just happens more easily

Have fun!

Hardcore   100 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Hardcore » Sep 25 2018 3:12pm

hi all, starting running higher pressures in the suspension but now the chain keeps on popping off. Anything to remedy this or...?

TOLM   10 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by TOLM » Sep 25 2018 4:30pm

Ender2000 wrote:
Sep 23 2018 11:44am
TOLM wrote:
Sep 21 2018 3:33pm
Ender2000 wrote:
Sep 20 2018 8:14pm
Does anyone else feel a bit of a lurch to one side when the motor is engaged?
Welcome to full suspension e-bikes (( rear triangle is moving. Effect is less pronounced with hardtails.
Ah, yes, I am new to this. I'm having some shifting issues and was wondering if this would be a contributing factor. I'm upgrading to an ex1 derailleur this week in hopes of less popcorn popping when I go outside of my middle gears.
Popcorn popping sound sounds like a rear derailleur adjustment issue to me. There are two ways to proceed. Option 1. Go youtube and check the video on rear derailleur adjustment from Park Tool guy. It is like 16 min long and pretty good. You will learn how to use the h , l screws and the indexing thing. Option 2 is bike shop. Much easier but will cost you something.

Ender2000   1 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Ender2000 » Sep 26 2018 12:26am

TOLM wrote:
Sep 25 2018 4:30pm
Ender2000 wrote:
Sep 23 2018 11:44am
TOLM wrote:
Sep 21 2018 3:33pm
Ender2000 wrote:
Sep 20 2018 8:14pm
Does anyone else feel a bit of a lurch to one side when the motor is engaged?
Welcome to full suspension e-bikes (( rear triangle is moving. Effect is less pronounced with hardtails.
Ah, yes, I am new to this. I'm having some shifting issues and was wondering if this would be a contributing factor. I'm upgrading to an ex1 derailleur this week in hopes of less popcorn popping when I go outside of my middle gears.
Popcorn popping sound sounds like a rear derailleur adjustment issue to me. There are two ways to proceed. Option 1. Go youtube and check the video on rear derailleur adjustment from Park Tool guy. It is like 16 min long and pretty good. You will learn how to use the h , l screws and the indexing thing. Option 2 is bike shop. Much easier but will cost you something.
I agree. I did watch a similar video, but I ultimately elected to have my $140 EX1 derailleur installed by the bike guy for $30. I wanted it to be done right on the initial setup, even if I have to adjust it later. So far, it's be an INCREDIBLE upgrade. I won't say definitively that all my shifting problems are gone, because I've been hesitant to really push the bike to its limits after recent issues, but after about 20 miles playing with up to level four on the low gears for off roading, no problems. Haven't tried for high speeds.

Incidentally, I might as well mention I elected to get the EX1 derailleur and shifter, but NOT the $350 cassette. I used a $29 sunrace cassette from shimano that is also 8 cogs, and the main difference (aside from alloy quality) is that it jumps from 11t to 40t in 8 gears as opposed to the EX1 cassette's 48t lowest. I admit that that's not quite as dramatic, but with the g510 I can climb pretty much anything I want to climb with that cassette and if I break it it's only 29 bucks to replace, which wouldn't make me scream and cuss like the SRAM.

Anyhow, it works really well with the EX1 system so far, so I thought I'd share my experience.

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Richard N   10 W

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Richard N » Sep 26 2018 9:22am

We should be getting close to seeing a complete sample bike, any day now. :D

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barbarossa   1 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by barbarossa » Sep 27 2018 3:49am

Ender2000 wrote:
Sep 26 2018 12:26am
TOLM wrote:
Sep 25 2018 4:30pm
Ender2000 wrote:
Sep 23 2018 11:44am
TOLM wrote:
Sep 21 2018 3:33pm


Welcome to full suspension e-bikes (( rear triangle is moving. Effect is less pronounced with hardtails.
Ah, yes, I am new to this. I'm having some shifting issues and was wondering if this would be a contributing factor. I'm upgrading to an ex1 derailleur this week in hopes of less popcorn popping when I go outside of my middle gears.
Popcorn popping sound sounds like a rear derailleur adjustment issue to me. There are two ways to proceed. Option 1. Go youtube and check the video on rear derailleur adjustment from Park Tool guy. It is like 16 min long and pretty good. You will learn how to use the h , l screws and the indexing thing. Option 2 is bike shop. Much easier but will cost you something.
I agree. I did watch a similar video, but I ultimately elected to have my $140 EX1 derailleur installed by the bike guy for $30. I wanted it to be done right on the initial setup, even if I have to adjust it later. So far, it's be an INCREDIBLE upgrade. I won't say definitively that all my shifting problems are gone, because I've been hesitant to really push the bike to its limits after recent issues, but after about 20 miles playing with up to level four on the low gears for off roading, no problems. Haven't tried for high speeds.

Incidentally, I might as well mention I elected to get the EX1 derailleur and shifter, but NOT the $350 cassette. I used a $29 sunrace cassette from shimano that is also 8 cogs, and the main difference (aside from alloy quality) is that it jumps from 11t to 40t in 8 gears as opposed to the EX1 cassette's 48t lowest. I admit that that's not quite as dramatic, but with the g510 I can climb pretty much anything I want to climb with that cassette and if I break it it's only 29 bucks to replace, which wouldn't make me scream and cuss like the SRAM.

Anyhow, it works really well with the EX1 system so far, so I thought I'd share my experience.
some reason for bad shifting might also be the shift cable set. my AM1000 had a 5mm housing (which is normally used for brakes) with silver steel caps. i changed it to Shimano MTB OT-SP41 housing and Jagwire Elite Ultra Slick cable. additionally my chain was a little too short. a little longer thats no problem but too short will result in bad shifting. for my am1000 i needed a long chain -standard 114 or 120 chains are too short - now i use a Shimano CN-HG701 138L with 138 chain links (and only a few chain links had to be put away) . now i have a perfect shifting - no problems anymore. i used shimano 11x 11-46t cassette with 44t original sprocket and now sram 11x 11-42t with a 49 sprocket.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by barbarossa » Sep 27 2018 4:26am

Hi,
just want to share some more experience with my AM1000. After all i am very happy with my bike. most of the problems or issues are mentioned in the thread. and i knew what i would buy and i like DIY bikes :). additionally i want to share an issue that might be very risky.
my bolts of rear suspension were too short (upper: 2mm / lower 2.5mm). you can remove the both right screws. or you can check it using an allen key and spin the left screws clockwise - there shouldnt be any noise and spinning should be smooth and without using much power (no side pressure).
but exactly this was not the case. so i removed the rear suspension.
for the upper bolt i could use a 2mm washer (6mm inner / 8mm outer diameter) because the bolt (65mm) was long enough to cover/fill the 2 inner rings of the ball bearings. Only to avoid side pressure i had to use an additional washer. bolt axle should move free without any pressure. optimal length would be around 67 mm, but i did not find that length and i did not want to shorten a longer bolt.
the lower bolt did not fill the ball bearing inner ring at the right side. bolt is appr. 39mm which is too short - i needed 41mm. so i now use a 44mm bolt with 3x DIN-1mm-gab washer. so i have exactly 41mm. the short bolt damaged the 2 ball bearings - right inner ring was split in 2 halves (but i did not recognize it - rear suspension did not made any noise and still worked) - left ball bearing was not spinning smooth anymore. i had to replace the 2 lower ball bearings (SKF 8x16x5mm 628/8-2RS1).
perhaps this issue might also damage the rear suspension attachment itself.
i have the rear suspension attachment in attached picture...
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G1Berg   1 µW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by G1Berg » Sep 27 2018 4:54pm

DaninSpain wrote:
Jun 06 2018 1:09pm
nataS@phnet.fi wrote:
Jun 06 2018 12:27pm
DaninSpain wrote:
Jun 06 2018 6:26am


Can anyone offer any help / advice? A step by step would be really nice, or if anyone knows of a YouTube video for changing pads on the MT5, which incidentally is different to the MT7, can you post the link.

Sorry for being such a dumb-ass re bike maintenance :(
It's not rocket science luckily so even i manage to do it :D
Take the wheel off. Take a look at the calibers, press them full open so maximum space is available. The pads are connected by magnets so just press first one side and slide the pad down. Then another one with same method. I also tried to find video about it but couldn't find so had to just try. But it's really easy and quick job.
Thanks NataS :D
As it happens, I did exactly that earlier today and worked it out as I went along.
I removed the pads, cleaned with degreaser heated the up with a blowtorch to burn off the oil, then sanded them down repeated the whole thing. Took off the disk, soaked it petrol and gave it a good old scrub then refitted everything, looked down and found a washer :shock:
I couldn't work out from which side it came so I tried both and decided on the disk side.
The brakes were binding a bit, so I loosened the whole brake unit, applied the brake then tightened it. Hey presto no more binding (I'm sure all the experienced bikers are pissing themselves laughing at the newbie :roll: :lol: :lol: :lol: )
Tried it out and all back to normal.
It's actually not as complicated as I thought this bike maintenance :D :lol:
Thank you! That's very helpful.

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by G1Berg » Sep 27 2018 4:59pm

I had to throw them away once. :D

FREYebikes   100 W

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by FREYebikes » Oct 01 2018 7:49pm

Today glad to show you our 2 new models as I told earlier.
26" fat bike we called hunter and 29" MTB we called HT1000 now.
We make a special design for the frame to make it strong enough to afford the 1000W mid motor and both considerate it better looking on the shape.
And all cables go inside of the frame.
See some photos following, how do you think about them?

And we will have a new full suspension fat bike come out in late of this month.
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Cruncher123   10 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Cruncher123 » Oct 01 2018 10:04pm

Nice and beefy. Like the internal cables. However, the battery integration could use some improvement - really noticeable in any color other than black.

garyal1   10 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by garyal1 » Oct 01 2018 10:36pm

Looks nice as a good back woods bike. Can you offer with headlight and tail light both integrated with Bafang controller?

Of course specifications and pricing would be of interest!

What sizes available?

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Richard N   10 W

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Richard N » Oct 03 2018 12:45am

I like them both, enough that I'm now asking myself if I want a fat bike or. . .

The HT1000 needs a rack, it has to be able to carry stuff. I'd really like to see one on some 27.5"+ wheels, Schwalbe 2.8" Super Moto-X for me, but whatever you have handy works. :D

Yes please, lets hear about the specs, are they similar to the AM1000? What fork is on the HT1000?

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E-geezer   100 W

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by E-geezer » Oct 03 2018 4:00pm

Since the ht1000 is the everything bike, it certainly needs rack and as many bottle cage mounts as possible for hauling things while commuting. Either 29 or 27+ wheel compatible too.

I'm not a big fan of internal cable routing, it looks clean, but can be a real pain to thread new housing.
The older I get, the faster I was

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Richard N   10 W

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by Richard N » Oct 03 2018 8:19pm

Thru-axles, what size?

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trooper5707   100 mW

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Re: My Bafang Ultra Mountain Bike! Frey AM1000

Post by trooper5707 » Oct 04 2018 8:43am

Wow, really like that bike! Makes me wish I had waited for the hard tail :) Anyone want to buy a like new AM1000? :)
Frey AM1000 - Speed Machine
Rad Rover - Work Horse
Rad mini - On the go
Home Brew Hub 1000W Hub build
Xiaomi M365

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