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  1. #1
    mkb
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    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?

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    Senior Member cmcanulty's Avatar
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    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.

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    mkb
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    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!

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    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

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    jur
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    I consider myself myself a bit of an armchair expert on Dahon handleposts but your description puzzles me.
    My folding bike photo essays www.dekter.net/

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    mkb
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    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.

  7. #7
    Senior Member wrafl's Avatar
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    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.

  8. #8
    New usename ThorUSA brakemeister's Avatar
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    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

  9. #9
    Senior Member Foldable Two's Avatar
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    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.

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    mkb
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    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.

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    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?

  12. #12
    New usename ThorUSA brakemeister's Avatar
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    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

  13. #13
    No Rocket Surgeon eubi's Avatar
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    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!

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    New usename ThorUSA brakemeister's Avatar
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    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

  15. #15
    Senior Member keithnyc's Avatar
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    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)
    I don't give a damn 'bout a bad reputation
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    Joan Jett, circa 1980

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    Senior Member wrafl's Avatar
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    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.

  17. #17
    mkb
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    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.

  18. #18
    New usename ThorUSA brakemeister's Avatar
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    Than open it up turn the little knob and close it again....

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