Cycling and bicycle discussion forums. 
   Click here to join our community Log in to access your Control Panel  


Go Back   > >

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.

User Tag List

Reply
 
Thread Tools Search this Thread
Old 11-09-07, 09:52 AM   #1
mkb
Junior Member
Thread Starter
 
Join Date: Jan 2007
Bikes:
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Dahon handlebars

I bought a 2006 Dahon Speed D7 last January and since I got it, I have had problem with the handlebars slipping when the temperature changes. Sometimes they will slip to vertical when I'm riding, and that's pretty scary. Any ideas on how to fix this?
mkb is offline   Reply With Quote
Old 11-09-07, 11:47 AM   #2
cmcanulty
Senior Member
 
cmcanulty's Avatar
 
Join Date: Dec 2006
Bikes:
Posts: 410
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Don't know the answer but have a question for you. I was looking at the Speed D7 2006 model on ebay and couldn't tell whether the handlebar height is adjustable or not, also what is the true folded size and true weight with everything on it? Thanks.
cmcanulty is offline   Reply With Quote
Old 11-09-07, 01:10 PM   #3
mkb
Junior Member
Thread Starter
 
Join Date: Jan 2007
Bikes:
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by cmcanulty View Post
Don't know the answer but have a question for you. I was looking at the Speed D7 2006 model on ebay and couldn't tell whether the handlebar height is adjustable or not, also what is the true folded size and true weight with everything on it? Thanks.
No, it's NOT adjustable!
mkb is offline   Reply With Quote
Old 11-09-07, 03:46 PM   #4
4cmd3
Senior Member
 
Join Date: Jul 2006
Bikes:
Posts: 375
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Hi - can you perhaps clarify exactly what part is slipping and how?

You've indicated that you do not have the adjustable handlepost.
Your comment about "slip to vertical" has me puzzled.

cheers
4cmd3 is offline   Reply With Quote
Old 11-09-07, 09:13 PM   #5
jur
Senior Member
 
Join Date: May 2005
Bikes:
Posts: 6,858
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 48 Post(s)
I consider myself myself a bit of an armchair expert on Dahon handleposts but your description puzzles me.
jur is offline   Reply With Quote
Old 11-12-07, 08:58 AM   #6
mkb
Junior Member
Thread Starter
 
Join Date: Jan 2007
Bikes:
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by 4cmd3 View Post
Hi - can you perhaps clarify exactly what part is slipping and how?

You've indicated that you do not have the adjustable handlepost.
Your comment about "slip to vertical" has me puzzled.

cheers
To fold up my bike, I have to loosen the handlebars so that they rotate upwards (i.e. the brake levers flip up 90 degrees to point at the sky) There's a little quick release lever in the middle of the bars that I lift to do this.
mkb is offline   Reply With Quote
Old 11-12-07, 09:20 AM   #7
wrafl
Senior Member
 
wrafl's Avatar
 
Join Date: Apr 2007
Location: Western Burbs of Chicago
Bikes:
Posts: 945
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mkb View Post
To fold up my bike, I have to loosen the handlebars so that they rotate upwards (i.e. the brake levers flip up 90 degrees to point at the sky) There's a little quick release lever in the middle of the bars that I lift to do this.

I have a '06 Speed 7 and I know what you are referring to. I have to losen the same QR if I want a compact fold by turning the handle bar.
wrafl is offline   Reply With Quote
Old 11-12-07, 10:10 AM   #8
brakemeister 
New usename ThorUSA
 
brakemeister's Avatar
 
Join Date: Nov 2004
Location: Southern Illinois USA
Bikes:
Posts: 2,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
whats wrong with tightening the quick release ? There is very little force to make them turn ( unless you do bunnyhops ) maybe they need a good cleaning as well... but they shouldnt slip at all..

Thor
__________________
www.thorusa.com
Dahon : Freedom Unfolds
Tern : all about the ride
brakemeister is offline   Reply With Quote
Old 11-12-07, 02:09 PM   #9
Foldable Two
Senior Member
 
Foldable Two's Avatar
 
Join Date: Aug 2005
Location: Vancouver, Washington and Ocean Shores, Washington, USA
Bikes: 2 - 2007 Custom Bike Fridays, 2 - 2009 Bike Friday Pocket 8's, Gravity 29'er SS, 2 - 8-spd Windsor City Bikes, 1973 Raleigh 20 & a 1964 Schwinn Tiger
Posts: 1,319
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Agree with Thor, should be pretty simple to solve - never had that problem on our 2005 Boardwalk D7s in the 2 1/2 yrs we had them (same handle bar design as the 2006 Speed 7).

ALL the QRs (Quick Releases) need periodic adjustment, as do the latches on the frame and stem riser.
Foldable Two is offline   Reply With Quote
Old 11-13-07, 08:02 AM   #10
mkb
Junior Member
Thread Starter
 
Join Date: Jan 2007
Bikes:
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by brakemeister View Post
whats wrong with tightening the quick release ?
There's nothing wrong with it, except that if it's tight when I start riding and five minutes later it's loose again and I don't realize, they could slip at a dangerous time.
mkb is offline   Reply With Quote
Old 11-13-07, 08:17 AM   #11
hairytoes
Senior Member
 
Join Date: Nov 2006
Bikes:
Posts: 467
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by mkb View Post
There's nothing wrong with it, except that if it's tight when I start riding and five minutes later it's loose again and I don't realize, they could slip at a dangerous time.
Quick releases don't usually come loose. Could you describe how you are tightening it?
hairytoes is offline   Reply With Quote
Old 11-13-07, 08:56 AM   #12
brakemeister 
New usename ThorUSA
 
brakemeister's Avatar
 
Join Date: Nov 2004
Location: Southern Illinois USA
Bikes:
Posts: 2,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
there is something fishy here..... As I said earlier that quick release is only holding the handlebar and preventing it from sliding or turning ... Nobody pulls on a handlebar from the side ( like pulling an arm out of a socket) or twisting the handlebar like a motorcycle.... except if somebody put a Triathlon extension or 3 feet long bar ends on it ???
It doesnt come loose by itself ....and why should it come loose in a dangerous time ( versus a peaceful time ???? ) I would think that ANY time something "becomes"loose its pretty dangerous ....

Something rubs me wrong with this, as if some lawyer is fishing for a lawsuit, where there is nothing ...

Its time to bring the bike to a dealer and have him explain how a quick release works ( and have him adjust it for you )

thor
__________________
www.thorusa.com
Dahon : Freedom Unfolds
Tern : all about the ride
brakemeister is offline   Reply With Quote
Old 11-15-07, 07:14 AM   #13
eubi
No Rocket Surgeon
 
eubi's Avatar
 
Join Date: Jan 2005
Location: Corona and S. El Monte, CA
Bikes: Cannondale D600, Dahon Speed T7
Posts: 1,648
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by brakemeister View Post
Its time to bring the bike to a dealer and have him explain how a quick release works ( and have him adjust it for you )
I get the same feeling, thor.

Like the people that simply use the QR lever as a spinner to tighten up the axles, but never throw the lever?!?

I've seen this at community clinics, where kids can bring in their bike for inspection/repair. If you ever get the chance to do this, I recommend it. What you see some kids riding will stand your hair on end.
__________________
Fewer Cars, more handlebars!
eubi is offline   Reply With Quote
Old 11-15-07, 10:24 AM   #14
brakemeister 
New usename ThorUSA
 
brakemeister's Avatar
 
Join Date: Nov 2004
Location: Southern Illinois USA
Bikes:
Posts: 2,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
lol
I hear ya
I did local family rides where up to 300 people showed up .... WOW . Had the local police close roads .. and I did bike safety clinics at them.... lifted 100's of roadmaster and Huffy bmx up my stand and put reflectors on and checked them...
did that for a couple years until the city... but thats another story

Anyhow ..yes it is unbelivable what you can see ....lol

Thor
__________________
www.thorusa.com
Dahon : Freedom Unfolds
Tern : all about the ride
brakemeister is offline   Reply With Quote
Old 11-15-07, 12:13 PM   #15
keithnyc
Senior Member
 
keithnyc's Avatar
 
Join Date: Jul 2006
Bikes: Dahon Folder Speed D7
Posts: 127
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Thor..I tend to agree with your assessment as well (btw, thanks for the followup on the other issue I noted on the Dahon boards....this sounds like the seat post that keeps sliding down problem.....LOL)
keithnyc is offline   Reply With Quote
Old 11-15-07, 01:44 PM   #16
wrafl
Senior Member
 
wrafl's Avatar
 
Join Date: Apr 2007
Location: Western Burbs of Chicago
Bikes:
Posts: 945
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by brakemeister View Post
whats wrong with tightening the quick release ? There is very little force to make them turn ( unless you do bunnyhops ) maybe they need a good cleaning as well... but they shouldnt slip at all..

Thor
I don't have a problem with the handle bar QR becoming lose while riding. When I fold the bike, I need to loosen the QR to keep the brake levers from getting in the way and rubbing against the wheels and to keep a neat compact fold. A QR becoming lose while riding is completely an adjustment or manufacturing
issue that require immediate attention by a Dahon LBS.
wrafl is offline   Reply With Quote
Old 11-16-07, 08:05 AM   #17
mkb
Junior Member
Thread Starter
 
Join Date: Jan 2007
Bikes:
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Quote:
Originally Posted by wrafl View Post
I don't have a problem with the handle bar QR becoming lose while riding. When I fold the bike, I need to loosen the QR to keep the brake levers from getting in the way and rubbing against the wheels and to keep a neat compact fold. A QR becoming lose while riding is completely an adjustment or manufacturing
issue that require immediate attention by a Dahon LBS.
OK, thank you. I understand how a QR works, and I'm not a lawyer, thanks.
mkb is offline   Reply With Quote
Old 11-16-07, 08:32 AM   #18
brakemeister 
New usename ThorUSA
 
brakemeister's Avatar
 
Join Date: Nov 2004
Location: Southern Illinois USA
Bikes:
Posts: 2,469
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Than open it up turn the little knob and close it again....
__________________
www.thorusa.com
Dahon : Freedom Unfolds
Tern : all about the ride
brakemeister is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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



All times are GMT -6. The time now is 06:55 AM.