(New to MTB) Looking for help with my Dengfu E10 build

[Zayd Proctor]

42 doesnt fit your frame, only with absurd offset spacers.
what is it that you want from the bike ? mtb i would put a 36t or maybe 38t if flat country

if headset is already installed you wont need a headset cup press.

Maybe I should add a front derailleur

 

[VardyR]

Maybe I should add a front derailleur

Funny you should say that but I have tried it, it wasn't that successful

 

[Zayd Proctor]

Ok, so final components:

As always, suggestions are welcome.

I decided to go with the rockshox coil because the price is too good to be ignored. The Marzocchi didn't go on sale, in fact, the price increased to 333€.

Some of the pivot bearings feel rough, so I decided to replace them all. The best deal I could find is from Trailvision, Blueseal bearings.

I still haven't decided what breaks to get. These are the options:
1. IIIPro IV4R - 90€
2. Shimano M7120 - 155€
3. Magura MT5 - 120€

I also need a bike stand (probably something from amazon 50-60€) and a small multitool.

There are a few tyres on sale. Not sure what to get.

What is the biggest 29" tyre I can fit in the back? 2.6"?
Is a 120 link chain long enough?

 

[xtraman122]

I really like my MT5s, they’re a good blend of quality/price in my opinion. 120 links should be fine, I was able to cut a few links on my E82 frame. Most will max out at fitting a 2.6” tire, yes. I wouldn’t go trying anything bigger unless you aren’t afraid to experiment and possibly have it not work out.

 

[Zayd Proctor]

I still haven't decided what breaks to get. These are the options:
1. IIIPro IV4R - 90€
2. Shimano M7120 - 155€
3. Magura MT5 - 120€

I excluded the IIIPro because I don't know if I can trust them with the warranty should I need it. Ultimately, I decided to go with Shimano because I read that Magura levers are prone to failure.

these are your contact points on your bike and going cheap on these you will regret, thrust me

I thought about this, and I think you are right. However, I believe that the saddle choice is very subjective because it depends a lot on the rider's anatomy. It wouldn't make much sense to buy an expensive saddle only to discover that it's not right for you. So, I think the best thing is to get a professional saddle fit, but before doing that, I want to have a reference point, like I said, this will be my first mtb in years. I think the cheap Chinese saddle will be a decent reference point. I will use it for a few months to figure out what I like and what I don't like, before upgrading to something better. It has a lot of positive reviews, so maybe I'll get lucky and not have to change it.

For the pedals: I really like how those look, especially the color. I decided to risk it, hopefully, they don't suck completely.

Finally, I ditched the Chinese grips and went with something more expensive, choosing mainly based on looks, I'm not gonna lie.

I'm not sure if I should take advantage of the current deals to get a dropper post as well. The frame came with the Exa i900. I don't know if it's any good but, I suspect it's not great.

 

[kaaskopf]

most basic non fuss emtb brakes could be the shimano 4 piston M6120 brakeset. can be found for like 130 usd
invest in same good rotors and pads. brakeset could be a cheaper ali option. some here on the forum have good results with them.
try to find pedals with good bearings and no play, i also tried some ali pedals but they all gave out within a month.

i wish you good luck with your build! lets us know how it went

 

[Zayd Proctor]

i wish you good luck with your build! lets us know how it went

Thanks a lot for the help, mate! I'll keep you updated for sure.

 

[dazirl]

Just be warned that in the last month a few Dengfu E10s have been posted on dengfus Facebook groups snapped in half, and all have snapped in the same place. Where the keyhole for the battery lock is.

 

[Zayd Proctor]

Just be warned that in the last month a few Dengfu E10s have been posted on dengfus Facebook groups snapped in half, and all have snapped in the same place. Where the keyhole for the battery lock is.

Thanks for the heads-up. I could only find the post from a single guy, though. And he does some hardcore DH stuff and 9m jumps.

I might take it to someone who fixes carbon frames to plug the keyhole. I wanted to repaint the frame anyway.

 

[dazirl]

Thanks for the heads-up. I could only find the post from a single guy, though. And he does some hardcore DH stuff and 9m jumps.

I might take it to someone who fixes carbon frames to plug the keyhole. I wanted to repaint the frame anyway.

Tbh the way he rides it is what these bikes where designed for. Buy something else from a company that won't claim you hit an invisible person on a trail when you try warranty claim I've an E82 off them full of frame defects. But hey it's your life in your hands

 

[Zayd Proctor]

I already have the frame, mate. I'm a noob, I won't be doing any crazy dh riding or jumping so I think I'll be fine.

Buy something else from a company

What company do you have in mind? From what I know, only Chinese companies sell frames for Bafang mid-drive motors and I don't really trust any of them.

 

[dazirl]

I already have the frame, mate. I'm a noob, I won't be doing any crazy dh riding or jumping so I think I'll be fine.


What company do you have in mind? From what I know, only Chinese companies sell frames for Bafang mid-drive motors and I don't really trust any of them.

There's plenty that can be trusted markhor make quality frames and they back their products with proper support.

 

[patdam]

There's plenty that can be trusted markhor make quality frames and they back their products with proper support.

May be better to wait few time and few (real) solved experiences of fails, before assert that an new brand produce high quality product and service?

Personally i use E10 in high mountain with my 100 kg weight since 5 years with always the same pleasure. but true i don't jump 9m

 

[dazirl]

May be better to wait few time and few (real) solved experiences of fails, before assert that an new brand produce high quality product and service?

Personally i use E10 in high mountain with my 100 kg weight since 5 years with always the same pleasure. but true i don't jump 9m

View attachment 151312

Does this look normal to you? Dengfu are telling the person he hit something. They are right. The ground. The owner had two other people that seen the bike snap in half off a landing. They are refusing warranty.

 

[patdam]

Does this look normal to you? Dengfu are telling the person he hit something. They are right. The ground. The owner had two other people that seen the bike snap in half off a landing. They are refusing warranty.

View attachment 151317

I can't said nothing, i was not here when the frame brake. I can just said mine functioning well (and i know that it have lot of other).
About warranty. pity but by experience i don't trust china company warranty, mostly in this time where the market dying. I trust more the return of the customers for identify company who sale quality product. To be honest at this time i never found after sale support from china supplier. A little from bafang, where the necessary spares to repair my motor has not available. after long fight they take directly in charge my problem. But if that occur one more time, i will prefer to purchase an spare new motor.

 

[Zayd Proctor]

Does this look normal to you? Dengfu are telling the person he hit something. They are right. The ground. The owner had two other people that seen the bike snap in half off a landing. They are refusing warranty.

View attachment 151317

This doesn't really surprise me. What does surprise me is that someone who does 9m jumps would entrust his life to a Chinese frame. The warranty thing is nothing new either.

 

[sandnap]

Does this look normal to you? Dengfu are telling the person he hit something. They are right. The ground. The owner had two other people that seen the bike snap in half off a landing. They are refusing warranty.

That looks painful! I hope the rider was not seriously injured.

Broken carbon frames are not that uncommon, even among name brands. Heavy ebikes exacerbate the problem and having a frame with removable battery, especially with a key lock presents an additional engineering challenge. You only have three surfaces and one of them has a large hole in it.

Poor warranties are also not uncommon, especially with lesser known Chinese brands. I don't think it's fair to say all Chinese manufactured frames are bad though. One also has to consider that you can buy 3-5 of these frames for the price of a name brand frame.

If I was taking hits like that on a regular bases I would be looking for frames that have a solid safety record. For most riders though, a good quality Chinese frame will serve them well. I don't own a Dengfu but I inspected my LightCarbon very carefully inside and out and confidence that it will be fine for the riding I do.

 

[dazirl]

That looks painful! I hope the rider was not seriously injured.

Broken carbon frames are not that uncommon, even among name brands. Heavy ebikes exacerbate the problem and having a frame with removable battery, especially with a key lock presents an additional engineering challenge. You only have three surfaces and one of them has a large hole in it.

Poor warranties are also not uncommon, especially with lesser known Chinese brands. I don't think it's fair to say all Chinese manufactured frames are bad though. One also has to consider that you can buy 3-5 of these frames for the price of a name brand frame.

If I was taking hits like that on a regular bases I would be looking for frames that have a solid safety record. For most riders though, a good quality Chinese frame will serve them well. I don't own a Dengfu but I inspected my LightCarbon very carefully inside and out and confidence that it will be fine for the riding I do.

This is my E82, if anyone's considering one of their frames I'd rethink it

 

[sandnap]

This is my E82, if anyone's considering one of their frames I'd rethink it

That is clearly poor quality work. Is this a recent problem? They have sold a lot of frames over the last few years.

Here is one pic of my LCE930, I have better pics somewhere.

 

[dazirl]

That is clearly poor quality work. Is this a recent problem? They have sold a lot of frames over the last few years.

Here is one pic of my LCE930, I have better pics somewhere.

View attachment 151344

I think it's just poor quality control on a frame that was rushed out. It hadnt been released long. Still shouldn't of passed their quality control. I've had so many issues, from ordering where they sent me the wrong bits and the wrong charger, to receiving a piss poor quality frame with badly pressed cheap bearings (where literally sat pissed) and two bearley moved. Bent the axel provided within the first 100km. One the dodgy bearings fully locked up around 150km, that was a fun one, sounded like I'd snapped the frame with the noises that radiated thruout the frame. CREEKS CREEKS AND MORE CREEKS. And no amount of foam damping stops the battery from rattling about inside the frame (common across all Dengfu frames it seems). Also came out that they Incorrectly Lazer etched a lot of bolts with lower torque specs then they should have, parts labeled as 8Nm when they should be 12Nm and sent out frames with these parts. Still nothing official from them warning their customers of their fuck up. It's like they don't actually have any quality control, as these problems would of been caught if they had a functioning department. Some of their staffs attitude stinks too, they laugh at you when you tell them parts suck or if you have the audacity to have an issue with their products and give quotes like "well other customers are happy" yet their Facebook group is full of people with bent axels. Ask them for a full torque chart for one of their frames, they don't exist, you'll get a dodgy Microsoft paint image with only some of the bolts listed. Will never give you specs for things like battery mounts, or even the motor. Shockingly a piss poor company that needs work on their customer support.

 

[Waynemarlow]

Does this look normal to you? Dengfu are telling the person he hit something. They are right. The ground. The owner had two other people that seen the bike snap in half off a landing. They are refusing warranty.

View attachment 151317

Have a look round the 2.00 minute mark and you will see a couple of riders trying to break the frame

Mine is now about 4K km's used and abused, quite happy thanks, no cracks, nothing major despite being abused on the UK trails which are notoriosly rough and rocky.

 

[dazirl]

Have a look round the 2.00 minute mark and you will see a couple of riders trying to break the frame
View attachment 151489

Mine is now about 4K km's used and abused, quite happy thanks, no cracks, nothing major despite being abused on the UK trails which are notoriosly rough and rocky.

I'm on a E82 with 2000km on it since October, I'm in wet and muddy Ireland. At this point I've just accepted if it breaks it breaks

 

[Waynemarlow]

I'm on a E82 with 2000km on it since October, I'm in wet and muddy Ireland. At this point I've just accepted if it breaks it breaks

You bought a Chinese produced frame ( who actually make the largest percentage of all bike frames ) at a discounted price to say a main stream brand, you have already done 2000km on it, you haven't yet broken the frame and nor have the vast percentage of owners, so why all the slagging of Dengfu ?

You cite one owner who is doing 9m jump offs as being the "norm". Mmmm I bet that same owner has broken other manufacturers frames as well ?

Bearings, again who hasn't had to replace frame bearings in our horrible wet and muddy conditions we in the UK and Ireland have to put up with. We should be the test bed for all bikes rather than the warm and mud free Californian conditions bikes seem to be tested in.

 

[LAnton]

Does this look normal to you? Dengfu are telling the person he hit something. They are right. The ground. The owner had two other people that seen the bike snap in half off a landing. They are refusing warranty.

View attachment 151317

How much does the owner of the bike weigh? How high did he jump from?

 

[dazirl]

You bought a Chinese produced frame ( who actually make the largest percentage of all bike frames ) at a discounted price to say a main stream brand, you have already done 2000km on it, you haven't yet broken the frame and nor have the vast percentage of owners, so why all the slagging of Dengfu ?

You cite one owner who is doing 9m jump offs as being the "norm". Mmmm I bet that same owner has broken other manufacturers frames as well ?

Bearings, again who hasn't had to replace frame bearings in our horrible wet and muddy conditions we in the UK and Ireland have to put up with. We should be the test bed for all bikes rather than the warm and mud free Californian conditions bikes seem to be tested in.

Because I was sent a frame with defects, very bad quality bearings, an axel made of chinisum, and incorrectly labeled parts that would put your safety at risk. Should people who are thinking about buying one of these frames not know about the issues with the brand?

 

[LAnton]

Because I was sent a frame with defects, very bad quality bearings, an axel made of chinisum, and incorrectly labeled parts that would put your safety at risk. Should people who are thinking about buying one of these frames not know about the issues with the brand?

I previously bought 2 e09 frames, three e10 frames. I have never had any problems, everything was done very efficiently and accurately. I also had various misunderstandings, but they were always solved. In a week, I will receive the e82 frame and examine it carefully. Is it really difficult for you to ask the owner of a broken frame his weight and from what height he jumped?

 

[dazirl]

I previously bought 2 e09 frames, three e10 frames. I have never had any problems, everything was done very efficiently and accurately. I also had various misunderstandings, but they were always solved. In a week, I will receive the e82 frame and examine it carefully. Is it really difficult for you to ask the owner of a broken frame his weight and from what height he jumped?

Someone already said above it was 9m, it wasn't a hard landing or a case. As for his weight I've no idea

 

[LAnton]

Someone already said above it was 9m, it wasn't a hard landing or a case. As for his weight I've no idea

In order to blame the frame manufacturer for the warranty failure, it is necessary to understand this situation well. Does the warranty apply to jumps from 9 meters high? If the driver's weight was 60kg, then we should think about the poor quality of the frame. If the driver's weight was 120kg, but many users should not worry that their frame may break. Where did you get this photo? I saw one video of a guy burning up in an elevator with a Chinese battery. But that's one accident in a billion.

 

[dazirl]

Dengfus group on Facebook

 

[Waynemarlow]

All to often we see computeritis of tap tap tapping away on the keyboard without doing even the slightest of investigation other than seeing a " photo" on facebook as proof. Is this one of those times ?

@dazirl has a case of his own frame being not of the standard he thought he had purchased, a great number of us are saying we are very pleased with our frames. Surely the best thing he could do is ask for a refund for the frame but then he has done 2K km's, I guess that option is no longer available.