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My CHEDECH (or carbon Brompton?)

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My CHEDECH (or carbon Brompton?)

Old 08-02-18, 12:53 AM
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GTA
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My CHEDECH (or carbon Brompton?)

Hi guys, greetings from Beijing, China again!

I have done like 1000km already with this CHEDECH 5.
There are some pictures and my experiences to be shared with you...

PROs
---It is relatively light, compared with the Brompton, but still weighs 8.x kg.
---Thanks to the carbon body, it absorbs some vibrations and provides a comfortable ride.
---The fold is almost as compact as a Brompton.
---Compatible with more standard components, for example, it uses Shimano/Tektro calipers.

CONs
---Still too namy nonstandard components.
---Sturmey-Archer 5 speed hub doesn't work well enough, especially the noise it makes makes me upset. I would have chosen a single speed version instead.
---Be careful when upgrading the crankset. Interferences may occur while folding.
---Unorganized cabling.
---The space is a little small for a big guy (like me, 183cm).
---Colourway can be improved or at least simplified.
---No luggage block.


Generally, as the first generation, CHEDECH 5 is an interesting bike. It does look like a Brompton, but actually quite different.
I am just hoping the second generation of CHEDECH (I don't know if the second generation is being planned yet)can improve significantly and sort out most of the CONs I listed, then it will be much closer to a perfect folding bike.

P.S.
I have to @chedech, your bikes are manufactured in China, but it's a pity you don't launch it in China market, so I had to buy it and ship it back to China.
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Old 08-02-18, 05:05 AM
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BromptonINrio
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Originally Posted by GTA View Post
Hi guys, greetings from Beijing, China again!

I have done like 1000km already with this CHEDECH 5.
There are some pictures and my experiences to be shared with you...

PROs
---It is relatively light, compared with the Brompton, but still weighs 8.x kg.
---Thanks to the carbon body, it absorbs some vibrations and provides a comfortable ride.
---The fold is almost as compact as a Brompton.
---Compatible with more standard components, for example, it uses Shimano/Tektro calipers.

CONs
---Still too namy nonstandard components.
---Sturmey-Archer 5 speed hub doesn't work well enough, especially the noise it makes makes me upset. I would have chosen a single speed version instead.
---Be careful when upgrading the crankset. Interferences may occur while folding.
---Unorganized cabling.
---The space is a little small for a big guy (like me, 183cm).
---Colourway can be improved or at least simplified.
---No luggage block.


Generally, as the first generation, CHEDECH 5 is an interesting bike. It does look like a Brompton, but actually quite different.
I am just hoping the second generation of CHEDECH (I don't know if the second generation is being planned yet)can improve significantly and sort out most of the CONs I listed, then it will be much closer to a perfect folding bike.

P.S.
I have to @chedech, your bikes are manufactured in China, but it's a pity you don't launch it in China market, so I had to buy it and ship it back to China.
nice looking bike!
8.6kg with sturmey archer 5 is a major feat of engenering!
if the gears where swapped these wheight could drop a kilo
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Old 08-02-18, 05:16 AM
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Thanks for the review. As folders go I think it is one of the nicer looking ones on the market.
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Old 08-02-18, 04:44 PM
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For people living in the Paris area, there's one for sale for €2.000

https://www.leboncoin.fr/velos/1454545003.htm/

Considering it's a dead ringer for the Brompton, no wonder they don't dare offering it in Europe/N.A.
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Old 08-02-18, 07:03 PM
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Originally Posted by Winfried View Post
For people living in the Paris area, there's one for sale for €2.000

https://www.leboncoin.fr/velos/1454545003.htm/

Considering it's a dead ringer for the Brompton, no wonder they don't dare offering it in Europe/N.A.
BFold of New York City sells them;
I think the price is better too at US$2,100 vs. 2,000 euros:
CheDech - bfold
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Old 08-02-18, 09:05 PM
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Perhaps it looks different and maybe attractive for you.
But if I am honest, I will strongly suggest you to consider carefully before you place any order.

From my point of view, considering the retail price, and compared with the Brompton, the CHEDECH 5 is still a semi-finished product. (perhaps I am sort of completist)
You have to be quite capable of DIY to "complete" it.

It is an interesting bike. But if I can chose, I would have bought only the frame from CHEDECH without any other component.

Cheers,
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Old 08-03-18, 03:07 AM
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Thanks for the user impressions.

That cabling looks horrendous, are you sure there is no better way to do it up?
I don't seem to recall it looking so messy when I saw it here and on sample photos.
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Old 08-03-18, 04:21 AM
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Besides, we don't know how resilient that carbon bike will be, especially the hinges. And it's a shame they forewent the front luggage.

For that kind of money, the "superlight Brompton" with some parts in titanium looks like a better deal, at the cost of an extra 2kgs.
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Old 08-03-18, 05:00 AM
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Originally Posted by Winfried View Post
Besides, we don't know how resilient that carbon bike will be, especially the hinges. And it's a shame they forewent the front luggage.

For that kind of money, the "superlight Brompton" with some parts in titanium looks like a better deal, at the cost of an extra 2kgs.
To get a 8.x kg brompton is actually not very difficult.

Last edited by GTA; 08-03-18 at 10:03 AM.
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Old 08-03-18, 06:26 AM
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Yes, but money-wise…

Someone computed that once you get the Brompton to weigh 10kg, it's about €1$ per gram saved :-)
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Old 08-03-18, 07:44 AM
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Originally Posted by BromptonINrio View Post
nice looking bike!
8.6kg with sturmey archer 5 is a major feat of engenering!
if the gears where swapped these wheight could drop a kilo
To be a feat of engineering it would need to be something like 4KG lighter. My Dahon Mu is 8.5KG and thats with a full metal frame and larger wheels. Far larger road bikes are several KG less, the real feat is working out how to possibly get such a small carbon bike to weigh that much...
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Old 08-03-18, 08:07 AM
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Originally Posted by GTA View Post
To get a 8.x kg brompton is actually not very difficult.
You'd basically take the frame and bin everything else. Everything. How is that "not very difficult"? If that isnt difficult then nothing you can do to a bike is.

I got my Tryell minivello down to 6.8KG (already have plans to drop another 150 or so grams, you dont want to know the per gram cost when you get to those numbers...) and that was only by scrutinizing every single part choice and spending long hours on the internet finding specs for parts. And you have to remember the goal just inst light weight, its also to make it better AND lighter, not just lighter, so the research doesn't end with finding a number on a spec sheet.
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Old 08-03-18, 08:09 AM
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Originally Posted by kidshibuya View Post
To be a feat of engineering it would need to be something like 4KG lighter. My Dahon Mu is 8.5KG and thats with a full metal frame and larger wheels. Far larger road bikes are several KG less, the real feat is working out how to possibly get such a small carbon bike to weigh that much...
Yes, it is too heavy. Even we consider the 1.5kg rear hub.
If you see another thread of mine, you could see a 4.9kg small bike.
BTW, my steel DAHON SPEED is already 8.2kg.
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Old 08-03-18, 08:19 AM
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Originally Posted by kidshibuya View Post
You'd basically take the frame and bin everything else. Everything. How is that "not very difficult"? If that isnt difficult then nothing you can do to a bike is.

I got my Tryell minivello down to 6.8KG (already have plans to drop another 150 or so grams, you dont want to know the per gram cost when you get to those numbers...) and that was only by scrutinizing every single part choice and spending long hours on the internet finding specs for parts. And you have to remember the goal just inst light weight, its also to make it better AND lighter, not just lighter, so the research doesn't end with finding a number on a spec sheet.
Same feeling. Sometimes it doesnt have to be so extreme. look what i did to some of my brake levers...
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Old 08-03-18, 09:39 AM
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Originally Posted by GTA View Post
Same feeling. Sometimes it doesnt have to be so extreme. look what i did to some of my brake levers...

Nice work
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Old 08-03-18, 10:44 AM
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The headtube angle looks more relaxed than on a Brompton. I'd expect this to make the bike less skittish/twitchy, which might be a significant improvement.
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Old 08-03-18, 04:59 PM
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Originally Posted by chagzuki View Post
The headtube angle looks more relaxed than on a Brompton. I'd expect this to make the bike less skittish/twitchy, which might be a significant improvement.
You are right. It is more relaxed, but too relaxed for me......
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Old 08-04-19, 06:08 AM
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Originally Posted by Winfried View Post
For people living in the Paris area, there's one for sale for €2.000

Considering it's a dead ringer for the Brompton, no wonder they don't dare offering it in Europe/N.A.
Hi, any new thoughts on the topic since it was started? 12kg brompton vs 9kg of chedah...

there is an announcement on Le bon coin for - 1600E (no links are allowed in my posts yet)

We live on top of a 100m hill in Vallée de Chevreuse, so standard gears wont work (the lowest should be 2.3m and with standard configuration it is 3m), Bigger sproket or smaller chainring?

Any thoughts in general since the topic was started?

Thanks
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Old 08-04-19, 06:57 AM
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https://www.leboncoin.fr/velos/1613464503.htm/

It's been for sale for months, still no taker. I don't like the fact that it won't take a bag in the front, and there's the risk of failure with a carbon frame/fork made by a young company.

For hilly areas, get a six-speed Brompton, and start with a 44T chainring. An 18T sprocket fits with a spacer, but the gaps's too big when shifting from the 13T sprocket. If that's still too big, put a double chairing for ~130€ total using new parts.

Or if it's just 100m: Get off the bike and walk #lowtech
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Old 08-04-19, 07:50 AM
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Originally Posted by Winfried View Post

It's been for sale for months, still no taker. I don't like the fact that it won't take a bag in the front, and there's the risk of failure with a carbon frame/fork made by a young company.
Thanks, the guy moved out close to St. Nazare, so even smaller chances that he sells it.
Brompton in -12% configuration should do the job.
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Old 08-04-19, 02:48 PM
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Here's a heavily modified Chedech with external 5-speed drivetrain (sram etap). its owner has a sub-6kg Brompton as well (with steel frame)



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Old 08-06-19, 08:42 AM
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Hi Rexel,

What an amazing job. Can you list the parts changed on your Chedech Black? More detailed photos?

Thanks
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Old 02-16-20, 04:28 AM
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Anyone with a Chedech can share what the width of the top tube is?
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