Folding Bikes Discuss the unique features and issues of folding bikes. Also a great place to learn what folding bike will work best for your needs.

What about Chedech?

Reply

Old 05-07-18, 12:01 AM
  #26  
GTA
Junior Member
 
Join Date: Apr 2018
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
compact and light
Attached Images
File Type: jpg
0000.jpg (829.6 KB, 136 views)
GTA is offline  
Reply With Quote
Old 05-07-18, 02:57 AM
  #27  
badmother
Senior Member
 
badmother's Avatar
 
Join Date: Nov 2007
Posts: 3,777
Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 317 Post(s)
Originally Posted by tds101 View Post
As much as I personally have no need for a carbon frame, I do love the fold on this bike,..
the fold looks familiar...
badmother is offline  
Reply With Quote
Old 05-07-18, 10:12 AM
  #28  
tds101 
Grumpy old man,...
 
tds101's Avatar
 
Join Date: Aug 2012
Location: Mastic Beach, NY
Posts: 2,383

Bikes: 7+,...

Mentioned: 10 Post(s)
Tagged: 0 Thread(s)
Quoted: 392 Post(s)
Originally Posted by badmother View Post
the fold looks familiar...
No comment,...but I still like it!
__________________
If it wasn't for you meddling kids,...
tds101 is offline  
Reply With Quote
Old 05-08-18, 01:02 AM
  #29  
Bonzo Banana
Senior Member
 
Join Date: Feb 2017
Location: Merry Old England
Posts: 535

Bikes: Muddyfox Evolve 200, Bicycles4u Paris Explorer, Raleigh Twenty Stowaway, Bickerton California, Saracen Xile, Kona Hoss Deluxe, Vertigo Carnaby, Exodus Havoc, Kona Lanai, Revolution Cuillin Sport, Dawes Kingpin, Bickerton, NSU & Elswick Cosmopolitan

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 190 Post(s)
They could do with some new artwork on the frame the branding 'Chedech' in white looks very amateur and unappealing. I'm not super keen on carbon as a frame material, it seems brittle and so many road and mountain bikes made from it seem to be disposable and short life. The bikes are strong but one crash and the frame is a write off and there seems to be a small amount of bikes that fail catastrophically due to poor manufacture because carbon frames are pretty much a manual labour manufacturing process and hairs and dirt get caught in the fibres very occasionally which causes the frames to delaminate and crack internally over time.

Also be careful when ordering lightweight parts from companies like aliexpress. Many low weight parts are sold as carbon fibre but actually fibre glass luckily you can normally do a quick check with a multi-meter. Carbon fibre is conductive but fibre glass isn't. Many have been caught out with dangerous lower strength parts that are actually fibre glass; handlebars, seat posts etc. Bike manufacturer's love selling carbon fibre road and mountain bikes due to likelihood of being replaced more frequently and environmentalists dislike the fact that many will hit landfill and can't be recycled. 2 reasons for me to be put off carbon.

Great video about carbon fibre here. The engineer loves carbon fibre bikes but clearly states many disadvantages and things to be concerned about. I'm more a steel and titanium fan based on their resistance to fatigue, improved comfort and long life.


Last edited by Bonzo Banana; 05-08-18 at 07:38 AM. Reason: spelling
Bonzo Banana is offline  
Reply With Quote
Old 05-09-18, 06:57 AM
  #30  
GTA
Junior Member
 
Join Date: Apr 2018
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
don't be afraid

carbon fiber is so far one of the best materials for bikes.
there is no reason to be afraid of new technology. (carbon fiber is not new at all but still being improved)

even my grandma has a carbon fiber wheelchair, actually. :-)
GTA is offline  
Reply With Quote
Old 05-09-18, 06:59 AM
  #31  
GTA
Junior Member
 
Join Date: Apr 2018
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
the fold

see how the fold looks like~~
Attached Images
File Type: jpg
PicsArt_05-08-10.23.37.jpg (1.23 MB, 92 views)
GTA is offline  
Reply With Quote
Old 05-09-18, 08:25 AM
  #32  
berlinonaut
Senior Member
 
Join Date: Mar 2016
Posts: 394
Mentioned: 7 Post(s)
Tagged: 0 Thread(s)
Quoted: 171 Post(s)
Originally Posted by GTA View Post
carbon fiber is so far one of the best materials for bikes.
there is no reason to be afraid of new technology. (carbon fiber is not new at all but still being improved)

even my grandma has a carbon fiber wheelchair, actually. :-)
Obvious that you have no issues with carbon fiber, otherwise you would not have bought this bike. To me carbon fiber and folders do not play well together as folders (at least mine) get banged around quite a bit and that is what carbon fiber does not like too much. This has nothing to do with voting agains new technology but with understanding of materials and choosing the right one for a given purpose.
berlinonaut is offline  
Reply With Quote
Old 05-09-18, 09:03 AM
  #33  
Bonzo Banana
Senior Member
 
Join Date: Feb 2017
Location: Merry Old England
Posts: 535

Bikes: Muddyfox Evolve 200, Bicycles4u Paris Explorer, Raleigh Twenty Stowaway, Bickerton California, Saracen Xile, Kona Hoss Deluxe, Vertigo Carnaby, Exodus Havoc, Kona Lanai, Revolution Cuillin Sport, Dawes Kingpin, Bickerton, NSU & Elswick Cosmopolitan

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 190 Post(s)
Originally Posted by GTA View Post
carbon fiber is so far one of the best materials for bikes.
there is no reason to be afraid of new technology. (carbon fiber is not new at all but still being improved)

even my grandma has a carbon fiber wheelchair, actually. :-)
I didn't even realise elderly people were so competitive when it comes to who can wheel themselves about the fastest. Does she wear lycra too? Maybe you are implying I am a dinosaur who doesn't move with the times and trends and you are probably right I just sort of like what I like even if that isn't what is popular with the majority. I guess I'm a little afraid of carbon fibre due to the way it fails and the only thing it seems to bring to the table is competitive advantage and low weight. On the way to the beach the other day I passed many cyclists in some sort of race or event and the only thing consistent about the race was the young cyclists were at the front and the elderly cyclists were at the end pretty much. Didn't seem to matter what the bike was cheap or expensive, aluminium or carbon. Plenty of seriously expensive carbon bikes at the back.
Bonzo Banana is offline  
Reply With Quote
Old 05-10-18, 09:46 PM
  #34  
GTA
Junior Member
 
Join Date: Apr 2018
Posts: 17
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 8 Post(s)
Originally Posted by Bonzo Banana View Post
I didn't even realise elderly people were so competitive when it comes to who can wheel themselves about the fastest. Does she wear lycra too? Maybe you are implying I am a dinosaur who doesn't move with the times and trends and you are probably right I just sort of like what I like even if that isn't what is popular with the majority. I guess I'm a little afraid of carbon fibre due to the way it fails and the only thing it seems to bring to the table is competitive advantage and low weight. On the way to the beach the other day I passed many cyclists in some sort of race or event and the only thing consistent about the race was the young cyclists were at the front and the elderly cyclists were at the end pretty much. Didn't seem to matter what the bike was cheap or expensive, aluminium or carbon. Plenty of seriously expensive carbon bikes at the back.
No offense.
I do have a BROMPTON (steel), a DAHON Speed (steel), a TERN Verge (aluminum) and a PACIFIC CarryMe (aluminum) as daily commuters and I love them, too.
But this CHEDECH is better than the BROMY. Lighter, faster, cheaper (I got a big discount, BTW), nicer parts and more sophisticated design......
Obviouslly I am not taking it to a road race or a downhill game.
Thanks for sharing your opinion on carbon fiber, but it is not my concern. :-)
GTA is offline  
Reply With Quote
Old 05-11-18, 07:52 AM
  #35  
2_i 
Senior Member
 
Join Date: Sep 2005
Location: Michigan
Posts: 2,048

Bikes: Trek 730, Bike Friday NWT, Brompton M6R*2, Trek 830, Trek 720, Dahon HAT060, Dahon HT060,...

Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 203 Post(s)
Originally Posted by GTA View Post
nicer parts and more sophisticated design......
I cannot care less about sophisticated design when there is no straightforward option of mounting real fenders, a sturdy rack unlike they offer, luggage mount etc. Still I can see there a role for such a bike in the market as for commuting where you can ensure relatively cozy conditions for the bike and can absorb consequences of carbon cracking, both in terms of consequences and financially if a mishap were to occur.
2_i is offline  
Reply With Quote
Old 05-12-18, 07:47 AM
  #36  
Bonzo Banana
Senior Member
 
Join Date: Feb 2017
Location: Merry Old England
Posts: 535

Bikes: Muddyfox Evolve 200, Bicycles4u Paris Explorer, Raleigh Twenty Stowaway, Bickerton California, Saracen Xile, Kona Hoss Deluxe, Vertigo Carnaby, Exodus Havoc, Kona Lanai, Revolution Cuillin Sport, Dawes Kingpin, Bickerton, NSU & Elswick Cosmopolitan

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 190 Post(s)
Originally Posted by GTA View Post
No offense.
I do have a BROMPTON (steel), a DAHON Speed (steel), a TERN Verge (aluminum) and a PACIFIC CarryMe (aluminum) as daily commuters and I love them, too.
But this CHEDECH is better than the BROMY. Lighter, faster, cheaper (I got a big discount, BTW), nicer parts and more sophisticated design......
Obviouslly I am not taking it to a road race or a downhill game.
Thanks for sharing your opinion on carbon fiber, but it is not my concern. :-)
I've never ridden a Chedech but on face value looking at the design and features it doesn't exude a feeling of quality, it looks a bit crude with poorly designed paintwork and missing features. Carbon fibre should be your concern if you are riding it, I'm pretty sure many brands of carbon fibre bikes recommend frequent visual checks of the frame to make sure cracks aren't present, these checks are more designed for lightweight road bikes I'm sure but you have to be a little more careful with carbon fibre due to its more brittle nature.

Even the best carbon frame manufacturer in the world (Giant bikes) writes this in their manual;

After any crash, take your bike to your dealer for a thorough check. Carbon composite components, including frames, wheels, handlebars, stems, cranksets, brakes, etc. which have sustained an impact must not be ridden until they have been disassembled and thoroughly inspected by a qualified mechanic.

That's any crash not severe crash and notice they don't even mention steel or aluminium but the first part of the text implies you can still ride them but they should be inspected by a dealer. So many more things you have to be careful about with carbon, bolt torque levels, not clamping the bike in a bike workstand and many other issues caused by a material that has little strength when pressure is applied in the wrong places on the bike. I've seen it written in a few places that you need a different mindset when riding a carbon bike to a aluminium or steel bike because the components can fail catastrophically without warning and this could be in the middle of busy traffic. I've certainly read of people hitting a pot hole with their carbon forks and instantly the forks failing and the rider plummeting to the ground at high speed and sustaining injuries. Lets not forget carbon fibre manufacturing is a manual process building up layer by layer of carbon fibre matting etc, it is much more likely to have a flaw due to this manual labour intensive process. It is low paid work where as an aluminium frame welder is much higher skilled and rewarded financially and many steel frames are robot welded at the big factories like fuji-ta. A steel frame can be welded in seconds, an aluminium frame welded in minutes and a carbon frame manufactured in hours and that's why carbon frames are currently the most inconsistent quality of any frame material.

This is quest composites that make Trek and Canyon carbon frames amongst others. Notice the working conditions, seats they are sitting on and the poor fitting of the hat of the woman closest to the camera meant to protect the forks from stray hairs and dust which can cause the carbon to de-laminate and crack. This is not a good environment for quality or consistency.

Bonzo Banana is offline  
Reply With Quote
Old 05-12-18, 10:47 AM
  #37  
ttakata73
Senior Member
 
Join Date: Feb 2012
Location: Bangkok: hottest average temperature :(
Posts: 557

Bikes: BirdyGT, Cannondale Hooligan1, Totem KDS-D fatbike, 1998 GT Forte Ti 700c, Brompton M2LX 16", Dahon Dove 14" (6kg)

Mentioned: 3 Post(s)
Tagged: 0 Thread(s)
Quoted: 59 Post(s)
Carbon smashing

I'm glad to see someone bought one of these. I think it looks great and wouldn't mind not having a rack or fenders since overall weight is what I want out of a portable bike. Carbon has come along. It really depends if the manufacturer is doing a good job, but there are probably just as many videos showing the crazy testing these frames have to pass vs frames that failed. In theory only carbon fiber has an infinite fatigue life. Some destruction tests; very convincing. I don't even have a carbon bike but will get one someday.
https://youtu.be/w5eMMf11uhM
https://youtu.be/20AG7tLxNto

Last edited by ttakata73; 05-12-18 at 10:51 AM.
ttakata73 is offline  
Reply With Quote

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off


Thread Tools
Search this Thread

Contact Us Archive Advertising Cookie Policy Terms of Service