Dengfu E22 Frame Thread

CaptainBobt

New Member
Jun 23, 2022
87
45
Usa
cool, thanks - so this will work?

I would read the reviews on chain reaction not good. e22 uses 8mm mounting bolts with eyelets not a trunion. See my post a d several others on the specs for the shock.
 

bram.biesiekierski

Active member
Apr 18, 2022
424
258
Perth WA Australia
cool, thanks - so this will work?

Dimensions are correct. But if you read the comments, they say it has a lower bearing mount. Which will not work.

The pictures show 2 variants. 1 with standard eyelets. The other with the bearing mount. But it sounds like you get the bearing mount unit, if you order that.
 

thaeber

Well-known member
Jan 26, 2021
887
769
Bruchsal, Germany
For anyone curious. This is the head tube angle on a large e22, when you fit a 170mm 29" fork, and run mullet config, and tweak the shock stroke, for slightly more travel.

Exactly 65°. Which is 1° slacker than the standard 66°, just by increasing the front axle to crown length, and mulleting it.

It would probably be even slacker, maybe 64.5° or so if I didn't increase the shock stroke via the offset bushings. And have equal width mullet tyres. (Currently has 29x2.4 front, and 27.5x2.6 rear.)

View attachment 92030
This is what I measure on my E10 with 180/29“/2.6 front and 216/63 shock 27.5“/2.6 rear

556F633A-606C-4849-A46C-BB7D7841142C.png
 

Chrisnow

New Member
Mar 2, 2022
17
13
Poland
What hydraulic brake is everyone using? Is there any 4 piston with 3 pins out there? Ive only seen 2 pins like the magura emt5 or the tektro hd-e725. Or the brake sensor with magnet is still the best way to go?
I am using shimano Zee, quite monsters :). no brake sensors, dont think they bring any added value to me
 

Chrisnow

New Member
Mar 2, 2022
17
13
Poland
Now that better weather and long days are here, I even took off my mud guards, the old standard 20ish mile laps are being rested and with the help of a piggy back battery new farther reaching terrain is on the menu. I haven't worn out the two yet but have done several just under 40 mile which knowing that I average just about 30wh/mi use at my preferred good clip and plenty of ele I can stretch it to 50 miles max but more likely 45+ comfortably. I mostly use 2/3 for my rides with a bit of 4 on really steep trail type terrain which we have some of here in the hood.

View attachment 92025

Makes a heavy bike heavier for sure but still don't really feel the weight once it is rolling. Low speed handling is still really good and medium to high speed is very planted and secure. The techish single track I have ridden is totally doable also. So I am proclaiming the extra $$ to get it set up, which was around $400 total was well worth it!

BTW my frame is a med but on large frames it will fit on the downtube, here is a pic of my friends E22 bike but with an Ortleib bag

View attachment 92026

Mine is a Stasher from Amazon. They were made to haul beer cans and came with liner material most of which was taken out to better fit the stock style battery casing.

I am happy I ended up with the two battery system because it will probably end up using my 52v most of the time for my <25 mile adventures that occur most days. But have some routes lined up to do with my Z1 buddy above that will be lots of fun!
may i ask for the link to tat bag ;)
 

BonBond

Member
Jun 19, 2022
108
79
Sussex
Dimensions are correct. But if you read the comments, they say it has a lower bearing mount. Which will not work.

The pictures show 2 variants. 1 with standard eyelets. The other with the bearing mount. But it sounds like you get the bearing mount unit, if you order that.
cheers, you are correct. Ordered something else :)
 

Chrisnow

New Member
Mar 2, 2022
17
13
Poland
Chris,

We don't need brake sensors for the m620 or is there a way to by pass it on the display?
Hi i am sorry but i don't get it. what do you mean by "by pass it on the display "?
In general we dont need brake sensors. personally they dont bring any value to me
 

RAW76

New Member
Jun 2, 2022
16
4
California
Hi i am sorry but i don't get it. what do you mean by "by pass it on the display "?
In general we dont need brake sensors. personally they dont bring any value to me

I'm still waiting for my e22 kit and have no idea what brakes I need but you are saying you don't need brake sensors. How it that possible since the kit comes with 3 pin plug and how does the motor start with out brake sensors? Is there a way to disable the brake sensor/ bypass it on the display?
 

Chrisnow

New Member
Mar 2, 2022
17
13
Poland
I'm still waiting for my e22 kit and have no idea what brakes I need but you are saying you don't need brake sensors. How it that possible since the kit comes with 3 pin plug and how does the motor start with out brake sensors? Is there a way to disable the brake sensor/ bypass it on the display?
thats right ,kit comes with plugs for brake sensors.however until you will not plugin sensors (with magnet) system do not recognize it. Works fine without one
 

BonBond

Member
Jun 19, 2022
108
79
Sussex
Does anybody know whether the the 48/52v versions are the same component wise, just with different low voltage cut off parameters set? I'm starting to obsess about the 48v sticker on the bottom of my motor....I'm yearning for 52v.
M620.jpg
 

Chrisnow

New Member
Mar 2, 2022
17
13
Poland
This is the one that I use and it is very well constructed and substantially cheaper....https://getstashers.com/products/stashers-3-0-modular-insulated-adventure-bag?variant=13131792056419
Is 3 cans variant enough for our standard battery?
 

Mabman

E*POWAH Elite World Champion
Feb 28, 2018
1,124
1,854
Oregon USA
Is 3 cans variant enough for our standard battery?

4can is what works. The packs have a liner and foam inside because the cans they refer to are supposed to be beer cans......I happen to think that opening a cold beer that has been on my bike ride for awhile would probably end up mostly on the ground. I cut out the liner and kept one pad of foam for under the battery.
 

Mabman

E*POWAH Elite World Champion
Feb 28, 2018
1,124
1,854
Oregon USA
Does anybody know whether the the 48/52v versions are the same component wise, just with different low voltage cut off parameters set? I'm starting to obsess about the 48v sticker on the bottom of my motor....I'm yearning for 52v.

Should be the same. If you have a DC18 display in the functions there is a 48v or 52v feature. At least there is on mine but I also have a UART motor and in the program for that you can specify either. I have a 48v and 52v and they both work fine. I do recommend 52v though because it does wake up the motor better as I think I have said on here before.

I have been putting my 48v, also 15ah 2170 cell 40A BMS, through cycles here lately to see if it will show the same range gains my 52v did and I would have to say yes. Still believe that the standard Dengfu 840wh 17.5ah battery is not as good and I gave that over 500 miles of use and it never improved.
 

bram.biesiekierski

Active member
Apr 18, 2022
424
258
Perth WA Australia
thats right ,kit comes with plugs for brake sensors.however until you will not plugin sensors (with magnet) system do not recognize it. Works fine without one
My kit didn't have plugs for brake sensors in the harness that goes between motor and cockpit.

But I did see on green bike kit, you can purchase that harness with the brake sensor inputs separately.
 

BonBond

Member
Jun 19, 2022
108
79
Sussex
Should be the same. If you have a DC18 display in the functions there is a 48v or 52v feature. At least there is on mine but I also have a UART motor and in the program for that you can specify either. I have a 48v and 52v and they both work fine. I do recommend 52v though because it does wake up the motor better as I think I have said on here before.

I have been putting my 48v, also 15ah 2170 cell 40A BMS, through cycles here lately to see if it will show the same range gains my 52v did and I would have to say yes. Still believe that the standard Dengfu 840wh 17.5ah battery is not as good and I gave that over 500 miles of use and it never improved.
Mine is UART too - I paid an extra bunch of cash for that convenience, I'm coming from a BBSHD which I've tweaked to hell, I couldn't go 'backwards' to CAN.

The kit I have came with a DCP18 display, I don't like it and will get myself a 500C (which know works with 52v as that's what I have on my current bike).
 
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BonBond

Member
Jun 19, 2022
108
79
Sussex
Should be the same. If you have a DC18 display in the functions there is a 48v or 52v feature. At least there is on mine but I also have a UART motor and in the program for that you can specify either. I have a 48v and 52v and they both work fine. I do recommend 52v though because it does wake up the motor better as I think I have said on here before.

I have been putting my 48v, also 15ah 2170 cell 40A BMS, through cycles here lately to see if it will show the same range gains my 52v did and I would have to say yes. Still believe that the standard Dengfu 840wh 17.5ah battery is not as good and I gave that over 500 miles of use and it never improved.
Thanks, is your 52v a 14s battery, 70 cells? If so are these in the 'official' battery housing? I've ordered an empty case along with the frame, the specs say its a 65cell case, but wondering if I can squeeze a few more cells in there...
 
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Mabman

E*POWAH Elite World Champion
Feb 28, 2018
1,124
1,854
Oregon USA
Thanks, is your 52v a 14s battery, 70 cells? If so are these in the 'official' battery housing? I've ordered an empty case along with the frame, the specs say its a 65cell case, but wondering if I can squeeze a few more cells in there...

I don't know frankly but both my DT batteries are in "official" battery housings and rated at 15ah's. But as 2170 cells are larger and if they say 65cell and assuming that refers to 18650 cells then I would say there are less in mine.
 

Neeko DeVinchi

E*POWAH Elite World Champion
Dec 31, 2020
1,033
1,376
UK
Figured I'd spread the word regarding the Bafang DZ41 display.
-10896409981066862193.jpg

Hopefully, this answers questions about the dimensions.
-10895824191716335570.jpg

Early reports suggests that these displays (depending on the connector), compatible with all bafang motors (old and new).
-10898048321743495319.jpg

I'll keep you posted further concerning the functionality of the display 👍🏿
 

OrangePower

Member
Jul 12, 2022
16
1
Slovenia
A few more bits and pieces on the bike.

Rear shock is in. In the end i used the offset bush's which allows me to run the 230/65 shock without any problems.

With standard concentric bushings, there is just about 10mm clearance between the shock yoke, and the forward edge of the seat tube. (As seen with the blue allen key as a feeler guage)

Each offset bushs adjusts by about 2mm. Adding the 2 offset bushings increases the effective length of the shock by about 4mm to a total of 234mm.

With the offset bushings installed, the gap between the shock yoke and the seat stay closes down to about 5-6mm. Which is ample clearance.
The 230/65 shock, with offset bushs, bottom outs out at almost the exact same posistion as a standard 230/60 shock with standard bushings. Well technically, 1mm deeper into its stroke. Which is no problem, and does not cause the seat stays to foul the seat tube at full bottom out.
The only problem I can see with this setup is the potential for the offset bushings to rotate over time, which would them throw everything out of whack and potentially cause fouling on bottom out.

I got the steerer tube cut down, and fitted up the stem, bars, grips, brakes and controls. Mounted up the front brake to the fork. And put the throttle on the right side above the shifters. My thinking was that way I can't simultaneously shift and give it gas at the same time. It was tight and I wasn't super happy with the alignment of everything.

I stupidly tried to adjust the GX eagle shifter blade position, and didn't realise its not actually adjustable, and when I undid the central screw, the entire shifter mechanism fell apart, with springs and what's its going flying in every direction. It took me a good few hours to reassemble the shifter mechanism. What a night mare. I am used to the X01 on my other bike which has an adjustable trigger posistion.
View attachment 90081 View attachment 90082 View attachment 90083
This setup looks superb. What is the weight?
 

BonBond

Member
Jun 19, 2022
108
79
Sussex
Figured I'd spread the word regarding the Bafang DZ41 display.
View attachment 92199
Hopefully, this answers questions about the dimensions.
View attachment 92200
Early reports suggests that these displays (depending on the connector), compatible with all bafang motors (old and new).
View attachment 92201
I'll keep you posted further concerning the functionality of the display 👍🏿
That looks pretty cool. Better than the 500C? I don't know. The minimal UI is nicer and it's certainly a shed-load cheaper...
 

bram.biesiekierski

Active member
Apr 18, 2022
424
258
Perth WA Australia
This setup looks superb. What is the weight?
I haven't weighed it. But I think its probs around 25kg.

You don't notice the weight riding. The bike feels fine when moving it around. The only time it might be a bit noticeable is quick succession direction changes where you need to lean the bike over one side to the other. But even then, it's not unmanageable.

But when it comes time to load the bike on and off the bike rack. That's when you feel it. I have one of those bike racks that hangs the bikes vertically via the front wheel. And getting it on and off is actually pretty tough. Especially after a ride when your tired.
 

Neeko DeVinchi

E*POWAH Elite World Champion
Dec 31, 2020
1,033
1,376
UK
I would appreciate it if this post could be shared to the relevant Dengfu E10/Cheeb threads on the forum. Nevertheless,
20220713_112828.jpg

This is the DZ41 display. A display which CANBus protocol bafang emtb riders have been waiting for.
20220713_112832.jpg

Power button is located on the bottom of the display.
20220713_113134.jpg

The display uses a 2.5mm allen key to secure onto the handlebars.
20220713_113148.jpg

Please note, the display does not include a 2.5mm allen key (nore introductions for navigation).

The DZ41 display I opted for is the CANBus protocol.
20220713_114413.jpg

However, you can get these displays in the UART protocol.
20220713_114432.jpg

Connecting the display onto the E10 took less than 5min (obviously factoring in your cockpit preferences).
20220713_112739.jpg

Although the display cable isn't straight in the above pic, the cable is measuring at 56.5cm
20220713_112758.jpg

Plenty long enough to be mounted on my 820mm 35mm Raceface Atlas handlebars outboard.
20220713_112842.jpg

The buttons have a good tactile response (a satisfying click). Ergonomically moulded perfectly for your left thumb to press the up or down button without fear of accidentally pressing the opposing button.
20220713_113449.jpg

The above image probably doesn't show how clear the display is when booted up. However, all readouts to my eyes are clear and big to see.
20220713_113534.jpg

Battery level is shown in 20% increments on the bottom. PAS level is shown towards the top left in red. The speedometer is shown in the middle.

Advanced settings of the display can only be accessed within the initial 5sec of booting up the display. Simply power on the display and then hold the mode button *M* for 3sec. You'll then be able to go into the parameters of the display such as:-
*Imperial or Metric
*Auto off time period
*Top speed adjust (only the UART variants can adjust top speed)
*Wheel size (only the UART variants can adjust wheel size)
*Wheel circumference (only the UART variants can adjust the wheel circumference).

Sadly, there doesn't seem to be an ability to adjust screen brightness. But by holding up to activate the light feature, it will dim the display.
20220713_112926.jpg

Just in case if anyone wants to know the serial number of the CANBus version of the DZ41 display.

Anywho, I'll make a full vid explaining everything and compare the DZ41 display to other displays from bafang along with other manufacturers.

Any questions, feel free to let me know.

Again, please share this information to the relevant threads ✌🏿
 

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