Dengfu E82 - M560 750w Build (Was: LightCarbon LCE971)

[xtraman122]

Used a dremel to up my hack job with the angle grinder and found some enamel epoxy appliance paint that blended in with the anodizing fairly well. With this section being something you never really see at all I’m fine with how it came out.

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[LAnton]

cant have both
non removable battery frame weigjt around 3kg

or removable battery with metal locks case design cutout and reinforcements at 4kg

its called physics

Of course you're right, this is physics. But if you throw away all these metal fasteners, then the frame should weigh 3100-3200g. Why do we need them if we can make a carbon battery lighter than the factory 700g. When I was making a cutout in the CEF50 frame weighing 2650, I was advised by an engineer and advised where to install carbon fiber and how much it should be. The weight of my frame turned out to be 3100g.

 

[xtraman122]

Of course you're right, this is physics. But if you throw away all these metal fasteners, then the frame should weigh 3100-3200g. Why do we need them if we can make a carbon battery lighter than the factory 700g. When I was making a cutout in the CEF50 frame weighing 2650, I was advised by an engineer and advised where to install carbon fiber and how much it should be. The weight of my frame turned out to be 3100g.

What metal hardware are you referring to, the ones for the linkage and pivot points? What would you suggest replacing them with if not metal?

I’d be fine with more bikes adopting the removable but more permanent batteries like the LCE930, many of the Orbea bikes, or new Amflow use for example. The lock, receptacle, and related hardware/wiring definitely adds a good bit of weight that I don’t have any need for. Those batteries are also generally skinnier leading to a better looking bike IMO.

 

[kaaskopf]

l

Used a dremel to up my hack job with the angle grinder and found some enamel epoxy appliance paint that blended in with the anodizing fairly well. With this section being something you never really see at all I’m fine with how it came out.

View attachment 148475

View attachment 148476

Of course you're right, this is physics. But if you throw away all these metal fasteners, then the frame should weigh 3100-3200g. Why do we need them if we can make a carbon battery lighter than the factory 700g. When I was making a cutout in the CEF50 frame weighing 2650, I was advised by an engineer and advised where to install carbon fiber and how much it should be. The weight of my frame turned out to be 3100g.

i build an e10 last month with a non removable cusfom 720wh battery

the battery was like 3100gr compared to official 4100gr
and i didnt use any battery locks /wiring which i weigh at 520gr

so yeah i think non removable battery could be better. for sure less frameweight is needed on top of less weight for baterry and no locks

What metal hardware are you referring to, the ones for the linkage and pivot points? What would you suggest replacing them with if not metal?

I’d be fine with more bikes adopting the removable but more permanent batteries like the LCE930, many of the Orbea bikes, or new Amflow use for example. The lock, receptacle, and related hardware/wiring definitely adds a good bit of weight that I don’t have any need for. Those batteries are also generally skinnier leading to a better looking bike IMO.

i talk about the front and back metal holders including lock for battery.
these items are heavy and come with excess wiring that i also didnt need.
these locks weigh almost 520gram

also i used a diy battery in 3d printed case so no heavy metal case was used.

you could do that to the E82 as well to save some weight. make it into non (easy) removable battery


original e10 battery was 4kg, this diy is only 3200gr and 720wh.

 

[xtraman122]

l




i build an e10 last month with a non removable cusfom 720wh battery

the battery was like 3100gr compared to official 4100gr
and i didnt use any battery locks /wiring which i weigh at 520gr

so yeah i think non removable battery could be better. for sure less frameweight is needed on top of less weight for baterry and no locks


i talk about the front and back metal holders including lock for battery.
these items are heavy and come with excess wiring that i also didnt need.
these locks weigh almost 520gram

also i used a diy battery in 3d printed case so no heavy metal case was used.

you could do that to the E82 as well to save some weight. make it into non (easy) removable battery


original e10 battery was 4kg, this diy is only 3200gr and 720wh.

View attachment 148545

I’d kill just for the stock E10 battery weight The E82’s massive 1008wh pack is somewhere over 4.5kg alone. I’ll have to weigh it again.

Speaking of weight, they put these nice clips to secure wires in there, but they definitely could have chosen something lighter to make them out of.

View attachment IMG_0296.jpeg

 

[kaaskopf]

I’d kill just for the stock E10 battery weight The E82’s massive 1008wh pack is somewhere over 4.5kg alone. I’ll have to weigh it again.

Speaking of weight, they put these nice clips to secure wires in there, but they definitely could have chosen something lighter to make them out of.

View attachment 148551

same as e10! you can always build
a custom smaller battery

 

[xtraman122]

same as e10! you can always build
a custom smaller battery

I thought the E10 had a smaller 840Wh battery.

 

[kaaskopf]

I thought the E10 had a smaller 840Wh battery.

- the clips were same
yes e10 comes with 840wh stock battery but you always can make a smaller battery or some kind of adapter to fit a smaller battery

i bet if you handy with 3d printer you could make a spacer to use the smaller e10 battery in e82 if thats what you want

 

[xtraman122]

- the clips were same
yes e10 comes with 840wh stock battery but you always can make a smaller battery or some kind of adapter to fit a smaller battery

i bet if you handy with 3d printer you could make a spacer to use the smaller e10 battery in e82 if thats what you want

I did buy an extra battery case that I now have, I was hoping to slide the pack from the LCE971 into it to have a much lighter 728Wh battery. It’s going to be very tight, I only tried messing with it for a minute so far, the cells definitely aren’t in the right configuration for the E82 case, but I was able slide it about 1/3 of the way in without much difficulty. I may need to redo the shrink wrap and/or do some slight grinding inside the case and I think I’ll be able to fit it in there.

Dengfu is supposedly thinking about a way to offer the E10 sized battery in the E82, but that’s been talked about for a while. I really don’t know what they were thinking making a massive battery be the only option for the frame, nobody else in the industry on a bike in this class is only offering a battery that damn big, and I highly doubt everyone with an E10 was complaining about short battery life with the 840Wh pack because that’s already on the larger side to begin with.

 

[xtraman122]

Finally something actually worked out with this build, I was able to squeeze the pack from my LCE971 battery into the extra E82 battery case I purchased and get it all hooked up. The BMS on the old pack was never setup for CAN communication so I’ll go without, but I don’t see any big issues with that anyway.

A comparison of weight between the 728Wh pack and the stock 1008 (728Wh: 3.66kg 1008Wh: 4.82kg)

Just need to get my connections sealed up with some silicone and put some glue in there to prevent and shifting and it should be ready for business.

 

[kaaskopf]

thats sweet

building your own comes with ups and downs...
this is going to be a sweet build , hang in there

 

[xtraman122]

thats sweet

building your own comes with ups and downs...
this is going to be a sweet build , hang in there

Thanks, that was my hope all along; I like tinkering and figured there would be no better way to learn my way around a "real bike" than building it from scratch. This will actually be my first full suspension bike ever which is kind of funny I guess. I've been putting some miles on the Vitus you see in the background with a BBSHD on it since the spring which gave me the itch to build a good bike, the only problem is I expected to be riding this thing in July...

Anyway, the front of the bike is mostly together now, brakes all mounted and line cut to length. I think I have my cockpit the way I want it, everything seems reachable and the display should be in a decent spot. I wanted the display near the stem, but with my phone mount and the display not being invert-able (And it having a very short cable) I wasn't left with many options.

I also found a supplier for the SD071 rotor brake sensor on Alibaba (Changzhou Fieldebikes who I've used a few times). Dengfu pretty quickly told me "no, we don't sell that alone" implying if I had bought the full frame + motor kit maybe I would have gotten it. I can honestly say I would never recommend doing business with Dengfu at this point and hope to never need to contact them again.

 

[LAnton]

Finally something actually worked out with this build, I was able to squeeze the pack from my LCE971 battery into the extra E82 battery case I purchased and get it all hooked up. The BMS on the old pack was never setup for CAN communication so I’ll go without, but I don’t see any big issues with that anyway.

A comparison of weight between the 728Wh pack and the stock 1008 (728Wh: 3.66kg 1008Wh: 4.82kg)

Just need to get my connections sealed up with some silicone and put some glue in there to prevent and shifting and it should be ready for business.

View attachment 148624




View attachment 148625

Thanks, that was my hope all along; I like tinkering and figured there would be no better way to learn my way around a "real bike" than building it from scratch. This will actually be my first full suspension bike ever which is kind of funny I guess. I've been putting some miles on the Vitus you see in the background with a BBSHD on it since the spring which gave me the itch to build a good bike, the only problem is I expected to be riding this thing in July...

Anyway, the front of the bike is mostly together now, brakes all mounted and line cut to length. I think I have my cockpit the way I want it, everything seems reachable and the display should be in a decent spot. I wanted the display near the stem, but with my phone mount and the display not being invert-able (And it having a very short cable) I wasn't left with many options.

I also found a supplier for the SD071 rotor brake sensor on Alibaba (Changzhou Fieldebikes who I've used a few times). Dengfu pretty quickly told me "no, we don't sell that alone" implying if I had bought the full frame + motor kit maybe I would have gotten it. I can honestly say I would never recommend doing business with Dengfu at this point and hope to never need to contact them again.

View attachment 148708
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I've been angry at Dengfu many times. But they have a good frame for the M510, M560. And I continue to communicate with them. I hope that someday they will learn how to make light frames. Although if you throw all the extra parts out of the frame and even replace the heavy battery cover with something light. Then the weight of the frame will be 3.3 kg. This is already a good result. Do you like the quality of glossy paint?

 

[xtraman122]

I've been angry at Dengfu many times. But they have a good frame for the M510, M560. And I continue to communicate with them. I hope that someday they will learn how to make light frames. Although if you throw all the extra parts out of the frame and even replace the heavy battery cover with something light. Then the weight of the frame will be 3.3 kg. This is already a good result. Do you like the quality of glossy paint?

Yeah the appearance of the finish definitely looks great, no imperfections that I could spot. Can’t speak to durability yet but the paint job itself appears to have been well done.

I actually wanted matte originally in a different color but the person from Dengfu on Alibaba was so adamant that was a bad idea I eventually just went with her opinion and chose gloss finish in a color I thought I’d like gloss in.

 

[xtraman122]

Bored with not much to do until I get my new rear triangle piece (Can’t mount my derailleur, wheel, caliper, and therefore motor because it’ll be in the way) so I decided to do some stickers… Applied part of my Dyedbro frame protection to break up the plain paint a bit.

Not sure where to put the last pieces, probably somewhere on the rear triangle. I considered the side of the downtube too, they’d fit almost perfectly, just not sure how it would look.

View attachment IMG_0336.jpeg View attachment IMG_0337.jpeg View attachment IMG_0338.jpeg

 

[LAnton]

Beautiful stickers. Where did you buy them? What is the name of this gray color? To make dengfu understand me

 

[kaaskopf]

i Always avoided dealing with dengfu direct as their communication put me
off in the beginning,

i only deal with fieldebikes (Chili shen)


i had some frames painted by the factory and durability always sucked
paints chips very easy as soon as a stone or screwdriver hits it....


if you want something durable look at cerakote finish. i have had my e10 frame done and it still looks fresh. its a very thin coating that stays flexible so it does not chip or come off

 

[xtraman122]

Beautiful stickers. Where did you buy them? What is the name of this gray color? To make dengfu understand me

Dyedbro has a website where you can buy them direct but it was a little pricey for me, I happened to find some bike shop selling them on Amazon for cheap, probably trying to get rid of old stock or something. I got it for only $30 shipped.

The color is Pantone 8C, they may call it PT 8C depending who you talk to.

 

[xtraman122]

i Always avoided dealing with dengfu direct as their communication put me
off in the beginning,

i only deal with fieldebikes (Chili shen)


i had some frames painted by the factory and durability always sucked
paints chips very easy as soon as a stone or screwdriver hits it....


if you want something durable look at cerakote finish. i have had my e10 frame done and it still looks fresh. its a very thin coating that stays flexible so it does not chip or come off

I’ve had good luck with fieldebikes as well, I always see people mention Chili’s name, I got someone named Tars Wong and he’s been good to deal with as well.

That’s unfortunate about the paint, I was afraid of that because I did have one spot where my yoke scratched up against the paint and it left a mark. I was hoping it was an anomaly but if it’s all that soft then yeah, it might not hold up that well. Must not use enough coats of clear coat or just cheap quality clear coat.

Dengfu told me last night my new rear triangle piece has been painted and just needs to be “inspected” and will then be on the way. Hoping I’ll have it within a week then, the frame came super fast, I think 4 or 5 days all the way from China via UPS.

 

[Odjas]

Yeah the appearance of the finish definitely looks great, no imperfections that I could spot. Can’t speak to durability yet but the paint job itself appears to have been well done.

I actually wanted matte originally in a different color but the person from Dengfu on Alibaba was so adamant that was a bad idea I eventually just went with her opinion and chose gloss finish in a color I thought I’d like gloss in.

In the photo from the official website, the e82 frame has a display on the top tube. Your frame does not have a display on the top tube. Did you order it that way on purpose or does Dengfu not make displays on the top tube like the one in the photo? Thank you.

 

[xtraman122]

In the photo from the official website, the e82 frame has a display on the top tube. Your frame does not have a display on the top tube. Did you order it that way on purpose or does Dengfu not make displays on the top tube like the one in the photo? Thank you.

I had never noticed that, it appears they only show it on the "SUV" version on their website. The mtb config doesn't have one. I would have preferred a top tube integrated display but honestly had never even seen it anywhere until you mentioned it just now. I wonder if there were strength concerns on with it for mtb use or something. All the custom E82 builds I've ever seen have not had a display in there.

DengFu Winice E82 ENDURO Carbon Ebike M560 M510 48V 29er

DengFu Winice E55 AM Carbon Ebike M620 UART 52V 1000W 20Ah 1040Wh 29er Wheels is a AM mountain E-bike. Equipped with BAFANG M620 UART 1000W 52V Gear sensor motor and 52V 20Ah 1040Wh Lithium-ion battery. TORAY T700 carbon fiber frame, 150mm full suspension, 29er Wheels, internal cable routing...

www.dengfubike.com

 

[Odjas]

I had never noticed that, it appears they only show it on the "SUV" version on their website. The mtb config doesn't have one. I would have preferred a top tube integrated display but honestly had never even seen it anywhere until you mentioned it just now. I wonder if there were strength concerns on with it for mtb use or something. All the custom E82 builds I've ever seen have not had a display in there.

DengFu Winice E82 ENDURO Carbon Ebike M560 M510 48V 29er

DengFu Winice E55 AM Carbon Ebike M620 UART 52V 1000W 20Ah 1040Wh 29er Wheels is a AM mountain E-bike. Equipped with BAFANG M620 UART 1000W 52V Gear sensor motor and 52V 20Ah 1040Wh Lithium-ion battery. TORAY T700 carbon fiber frame, 150mm full suspension, 29er Wheels, internal cable routing...

www.dengfubike.com

Ah, so that's it. I thought they put displays on the top tube on all frames.

 

[LAnton]

This is not the best version of the display. It does not connect to bafang go+. There is a newer version of the C030 with bluetooth and a larger screen. But it is necessary to make a large hole for it. Or you can print such a detail on a 3d printer and make small holes in the frame for the wires

 

[kaaskopf]

This is not the best version of the display. It does not connect to bafang go+. There is a newer version of the C030 with bluetooth and a larger screen. But it is necessary to make a large hole for it. Or you can print such a detail on a 3d printer and make small holes in the frame for the wires

View attachment 148824 View attachment 148826

aha good info

wont need bluetooth as i have a besst tool. only set it once and never look back

 

[Alessio77]

This is not the best version of the display. It does not connect to bafang go+. There is a newer version of the C030 with bluetooth and a larger screen. But it is necessary to make a large hole for it. Or you can print such a detail on a 3d printer and make small holes in the frame for the wires

View attachment 148824 View attachment 148826

are you aware of someone selling that 3D printed support?

 

[LAnton]

are you aware of someone selling that 3D printed support?

I do not know who sells this part. This detail is easy to make yourself.

 

[xtraman122]

My speed sensor arrived today so I quickly mounted that while I wait to see if I'll ever get my correct rear triangle from Dengufu...
I've seen a lot of people ask for the right speed sensor for the E82 and where to get it. It's the Bafang SD071, I was able to get it from Fieldebikes on Alibaba (About $14 + shipping). I actually really like how this mounts up, way cleaner and more integrated looking than having something hanging off a spoke. Less likely to get bumped as well.

零部件

Bafang description

www.bafang-e.com.cn

零部件

Bafang description

www.bafang-e.com.cn

here it is attached. Very tight clearances but everything fit like a glove and looks like it should work out (I know... The sensor will be coming off once I get the right rear triangle).

 

[xtraman122]

I’ll get some pics when I have time and still have some tidying up to do, but long story short I got my triangle today and completed the build. Finally. 5 months and a week after I started the journey to build a bike, and expected to have it completed by mid July.

After receiving the new upper rear triangle piece I couldn’t believe how god awful the bearings they use are. One of them was literally trash, could feel it clicking a bit as it went around and had quite a bit of resistance. I tried getting them out but was too afraid of damaging the carbon so I just left it for now. I had heard someone comment on the quality of the bearings from Dengfu before but honest couldn’t believe they’d be this bad. Not sure if the bearing itself it truly that shitty or someone damaged them forcing them into the frame; probably a combination of the two. Another good reason to use LC instead of Dengfu, they advertise they use name brand bearings in their frame.

The SRAM transmission setup was interesting trying to follow all the specific steps, but overall was pretty easy and the system is just awesome. I did some small micr adjustments through the app and was blown away by how damn smooth and fast it shifts under any load, quite a change from my old beat up Deore 10-speed

The bike weighed in at about 52.2lbs (23.6kg) with my smaller 728Wh battery. I say about because I couldn’t find a good spot to hang it from where the scale would sit perfectly still so I just held it and got as consistent of a reading as I could get.

Mounting the motor was a little scary, I started hearing some quiet but audible light cracks as I was tightening the motor bolts before getting anywhere near the recommended torque so I stopped and left them tight but not to spec according to the Bafang manual. Those numbers seemed damn high for a carbon piece anyway. We’ll see if the thing falls apart after a week because I damaged it mounting the motor. If so that might be the icing on the cake to find a new hobby after this experience.

My one outstanding issue still is my Dengfu CAN battery doesn’t seem to work at all. Bike just won’t turn on, works perfectly fine with my custom non-CAN one, so I suspect something is up with the CAN stuff. I have the wiring harness with the little CAN battery connector and hooked it up, but something must be wrong. I noticed one of the little wires from the CAN connector to the battery receiver was cut off from the factory and didn’t look right. Someone on Facebook told me the CAN wiring is only 2 connections, but I have my doubts what’s there is right, it’s a 3-pin connector and I don’t know what that wire is doing, but if that came defective as well I’ll have another reason to despise Dengfu. It has truly been an abomination of an experience in terms of quality from them, from the ordering process, to customer service, to the physical product itself. I would never recommend anyone use their stuff based on this experience. I really wish I could have just stuck with an LC frame.

I only had a chance to do a few laps in the driveway in the dark to test it, but it seems like it’s going to be a blast. The motor seems damn powerful just on Trail, I think where I used to run my BBSHD was between Eco and Trail on this, more riding will tell. I would always try and stick just PAS 1/5 on the BBSHD which peaks just under 500w according to the display. I do need to bleed the brakes a bit more and tidy up some cables and then I’ll have some completed pics up hopefully tomorrow.

 

[xtraman122]

Fixed my dropper wire and took a few pics. I don't love how my front brake line is wanting to stick out, I'll have to play with it a bit to get it to sit nicer. Yes, I know I could have gone with a much longer dropper. I wasn't sure how much space I'd have and just played it safe with a 125mm. This will be my first bike with a dropper anyway so I'll enjoy it as it is.

Still not sure about the battery situation, won't be fun to look at as it's going to require taking the motor off to get to it. I like my lighter battery anyway...

The noise of the M560 seems great, very subdued little whine from it, nothing I would expect anyone to comment on at all. I did regrease my motor as soon as I got it, so I'm not sure if that's helping or not, but the sound is hardly any louder than my BBSHD which is super quiet. Mostly just a higher pitch to the sound, but by no means loud at all so I'd say it's safe to say they fixed the noise issue from the first gen of the M560.

 

[kaaskopf]

i just want to say,

i have seen 3 cracked lc emtb frames that i build it the last 3 years. Yes Jim is easier to deal with compared to dengfu but i never seen any cracked dengfu emtb frames tho.. i did get help with warranty in all cases

for the broken bearing, i used a special bearing puller before to pull out bearings from carbon. it can be done smoothly id you have to right tools

if you dont have the tools maybe you can just pop off the bearing cover and try to add some grease. i have seen both lc / dengfu frames without any grease in their suspension bearings

they both use low quality bearings in my eyes