Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    Senior Member pharnabazos's Avatar
    Join Date
    Sep 2004
    Location
    NYC
    My Bikes
    Zeus Professional, Juncker Calypso, Lotus Eclair, Dahon Speed, Raleigh Twenty
    Posts
    345
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Do others have prob's with smooth shifting in all gears on Dahons

    I guess the problem seems to be that my speed 8 is good for 3-4 gears depending on adjustment, and there's considerable grinding in the other gears, though they function. Doesn't seem like the gear spacing or chain width is right.

    Also-does your chain fall off the front? It's not that often, but usually after taking it out of the bag, so I jump on the pedal and nearly kill myself. Is this a chain tension thing (as I recall, somebody at LBS said that Dahons are often mistensioned).

    Anybody have similar experiences/solutions?

  2. #2
    Banned. folder fanatic's Avatar
    Join Date
    May 2005
    Location
    Anti Social Media-Land
    Posts
    3,076
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Oh yes, I read about the chain popping off the chainwheel on Dahons for a long time. My own solution was 1. Purchasing the Boardwalk S1 with rear horozontal dropouts on the frame and 2. Having a three speed rear hub installed. Never had that experience on mine so far!

  3. #3
    Senior Member
    Join Date
    Apr 2005
    Location
    midwest
    Posts
    240
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    yes - this happened on my dahon 2005 speed8 too. I took it to lbs and they fixed it but a friend picked it up for me so I didn't get an explanation-so far it has been okay for about month. Another place to check on this complaint is on the Dahon website - there have been a cople of discussions on the forum there about this problem.

  4. #4
    Member 5port's Avatar
    Join Date
    Aug 2004
    Location
    LI,NY, USA
    My Bikes
    Bacchetta Giro 20, Dahon Boardwalk 6
    Posts
    44
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I get the chain on my Boardwalk6 to fall off when I shift into first at a fast rate. If I am slow and gentile it does not fall off. I've used a device called the N-stop on other bikes and I'm going to order it for the boardwalk. It is a delrin clamp with an adjustable stainless steel plate. You adjust the plate to within about 1/8 inch of the chain. It works. You will never have to deal with it again:

    http://sheldonbrown.com/harris/chains.html

  5. #5
    Senior Member
    Join Date
    Dec 2001
    Location
    New Jersey
    Posts
    6,128
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by pharnabazos
    I guess the problem seems to be that my speed 8 is good for 3-4 gears depending on adjustment, and there's considerable grinding in the other gears, though they function. Doesn't seem like the gear spacing or chain width is right.
    Anybody have similar experiences/solutions?
    OH MY! I could have written the same thing. My bicycle shifted perfectly when new but now some gears grind and I suspect it's due the to the horizontal dropouts. The wheel has to be put perfectly inside the dropout or the gears will start grinding. I don't know how to fix mine yet but it makes me wish the bike had verticle droupouts.

  6. #6
    Member
    Join Date
    Nov 2004
    Posts
    25
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It sounds like you guys just need to adjust the shift cables. Cables stretch with use so periodic adjustment is always necessary.

  7. #7
    Senior Member pharnabazos's Avatar
    Join Date
    Sep 2004
    Location
    NYC
    My Bikes
    Zeus Professional, Juncker Calypso, Lotus Eclair, Dahon Speed, Raleigh Twenty
    Posts
    345
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Dahon.Steve
    OH MY! I could have written the same thing. My bicycle shifted perfectly when new but now some gears grind and I suspect it's due the to the horizontal dropouts. The wheel has to be put perfectly inside the dropout or the gears will start grinding. I don't know how to fix mine yet but it makes me wish the bike had verticle droupouts.
    Just as an update to these problems--I ditched the gripshift and just went with a bar end shifter in friction mode. I'm much happier now.

    Also, about the chain thing: It looked like the culprit was the chainguard, which was bending further and further *away* from the chainring, allowing the chain to move off it and eventually fall one way or another. I unbolted the chainring and reversed it, so that it was tight against the chainring. I have not had a problem since.
    Last edited by pharnabazos; 07-01-05 at 09:05 PM.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •