Advertise on Bikeforums.net



User Tag List

Results 1 to 14 of 14
  1. #1
    Senior Member
    Join Date
    Dec 2006
    Location
    Ludwigshafen
    My Bikes
    New World Tourist
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Bike Friday Stem

    hi guys
    looks this part stem(or what ever you call it),I don t really like it on my BF,I already change it one time,but this is not a good solution,maybe someone has a better one.You can see on the pictures
    http://img697.imageshack.us/i/openr.jpg/
    http://img210.imageshack.us/i/close.jpg/
    www.colmanlerner.zenfolio.com
    http://submit.shutterstock.com/?ref=60183
    “No Sueñes Tu Vida, Vive Tus Sueños“
    There is a driving force more powerful than steam, electricity and nuclear power: the will.
    A.Einstein

  2. #2
    These go to eleven kegoguinness's Avatar
    Join Date
    Nov 2008
    Location
    Distrito de Columbia
    My Bikes
    BF Pocket Crusoe; B Tikit; dust-gathering MTB
    Posts
    414
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Call or email Bike Friday for a start. Tell them about the problem and send them the photos. They will replace for free. But if I understand you, you would rather have a different stem? Ask about their new folding stem and if it would alleviate the problem you have. Tell them (and us) the type of riding you do, the mileage on this stem riser, your size, the bike frame size, etc. Good luck
    1989 Lumaca Schiacciata
    2003 Réfléchi Souteneur
    2010 salsicha vermelha

  3. #3
    Senior Member
    Join Date
    Dec 2006
    Location
    Ludwigshafen
    My Bikes
    New World Tourist
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    do you also ride BF?and dont have this problem.I think that 1 year ago they replace the stem,but I will email them,maybe the new folding stem is better.
    www.colmanlerner.zenfolio.com
    http://submit.shutterstock.com/?ref=60183
    “No Sueñes Tu Vida, Vive Tus Sueños“
    There is a driving force more powerful than steam, electricity and nuclear power: the will.
    A.Einstein

  4. #4
    Senior Member Foldable Two's Avatar
    Join Date
    Aug 2005
    Location
    Vancouver, Washington and Ocean Shores, Washington, USA
    My 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
    Posts
    1,306
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What's the problem with it???

    The new folding stem uses the same basic part, but with a Hex Bolt, not a Quick Release.

    It is a very solid set-up, per the 40 miles my wife put on her folding stem equipped Crusoe this weekend.

    Have to say though, we have never had any problems with the "stock" QR set-up on any of our four Fridays.

    Lou
    Attached Images Attached Images
    Last edited by Foldable Two; 05-02-10 at 09:28 PM.

  5. #5
    Senior Member
    Join Date
    Dec 2006
    Location
    Ludwigshafen
    My Bikes
    New World Tourist
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Foldable Two ,I dont fold my bike a lot only when I put it on a suitcase,but like you can see on the pictures ,the space is getting small ,that in a future will not adjust anymore (I hope you understand me)
    For put the bike on the suitcase with the new folding stem do you need to dismantle more parts of the stem?
    Thanks
    www.colmanlerner.zenfolio.com
    http://submit.shutterstock.com/?ref=60183
    “No Sueñes Tu Vida, Vive Tus Sueños“
    There is a driving force more powerful than steam, electricity and nuclear power: the will.
    A.Einstein

  6. #6
    Senior Member Foldable Two's Avatar
    Join Date
    Aug 2005
    Location
    Vancouver, Washington and Ocean Shores, Washington, USA
    My 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
    Posts
    1,306
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Looks like your clamp is bent a bit - due to tightening (and maybe over tightening, too). Assume the QR bolt is bent, too. Also, bike doesn't look super new - maybe a new, replacement part is in order?

    We don't have suitcases for our bikes - we normally travel with a small folding trailer behind our SUV and the bikes mount on a board in the rear of the SUV. My guess is that the bikes would NOT fit in a suitcase without the folding stem removed from the bike. It's just too tall, even when folded. I think it was designed to make BF's better folders, not better suitcase packers.

    Lou

  7. #7
    Senior Member
    Join Date
    Dec 2006
    Location
    Ludwigshafen
    My Bikes
    New World Tourist
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    foldable two,my bike is only 3 years old and was packed every time I fly (maybe 7 times)really no much for a folding bike? And I dont think that Iam really tightening to much the qr,anyway I already sended an mail to bf we will see what they answer
    www.colmanlerner.zenfolio.com
    http://submit.shutterstock.com/?ref=60183
    “No Sueñes Tu Vida, Vive Tus Sueños“
    There is a driving force more powerful than steam, electricity and nuclear power: the will.
    A.Einstein

  8. #8
    Senior Member Foldable Two's Avatar
    Join Date
    Aug 2005
    Location
    Vancouver, Washington and Ocean Shores, Washington, USA
    My 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
    Posts
    1,306
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'd agree - give them a call.

    Here's mine after 2 1/2 yrs (the last 1 1/2 at the beach has taken its toll).

    The gap on mine is a bit wider. I would bet either one of them would crack or break before they cease to function properly.
    Attached Images Attached Images

  9. #9
    jur
    jur is offline
    Senior Member
    Join Date
    May 2005
    Posts
    6,113
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Having welded-on pinch flanges causes the metal to stretch. Aluminium would crack. Far better to have a separate collar around it.

  10. #10
    Senior Member
    Join Date
    Dec 2006
    Location
    Ludwigshafen
    My Bikes
    New World Tourist
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    jur do you have an example with a separate collar
    thanks
    www.colmanlerner.zenfolio.com
    http://submit.shutterstock.com/?ref=60183
    “No Sueñes Tu Vida, Vive Tus Sueños“
    There is a driving force more powerful than steam, electricity and nuclear power: the will.
    A.Einstein

  11. #11
    Senior Member
    Join Date
    Dec 2006
    Location
    Ludwigshafen
    My Bikes
    New World Tourist
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Hi guys hier BF answer to my problem

    "It is normal for the stem clamp to stretch over time and for
    the tabs to get closer together. One possible remedy is to replace the
    quick releases with solid bolts. They are thicker and tend to pull the
    stem tight better."
    www.colmanlerner.zenfolio.com
    http://submit.shutterstock.com/?ref=60183
    “No Sueñes Tu Vida, Vive Tus Sueños“
    There is a driving force more powerful than steam, electricity and nuclear power: the will.
    A.Einstein

  12. #12
    jur
    jur is offline
    Senior Member
    Join Date
    May 2005
    Posts
    6,113
    Mentioned
    3 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by gdlerner View Post
    jur do you have an example with a separate collar
    thanks
    Basically, you have to grind/file off the flanges and put a seatpost clamp around it.

    Alternatively, file the slot open again.

  13. #13
    Senior Member Foldable Two's Avatar
    Join Date
    Aug 2005
    Location
    Vancouver, Washington and Ocean Shores, Washington, USA
    My 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
    Posts
    1,306
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by jur View Post
    Basically, you have to grind/file off the flanges and put a seatpost clamp around it.

    Alternatively, file the slot open again.
    Filing it a bit would be fairly easy. Also, note the "bolt" closure on the similar collar that secures the new folding stem - a good example of Jur's suggestion. Because of the shape of the collar - and likely it's size, too - the use of a seat post clamp is not possible.

    Note, that the vertically adjustable part of the folding stem (the silver section) is held in place with BF's standard seat post clamp, not a QR..

    Lou
    Attached Images Attached Images
    Last edited by Foldable Two; 05-05-10 at 11:21 AM.

  14. #14
    Senior Member
    Join Date
    Dec 2006
    Location
    Ludwigshafen
    My Bikes
    New World Tourist
    Posts
    296
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks a lot guys
    www.colmanlerner.zenfolio.com
    http://submit.shutterstock.com/?ref=60183
    “No Sueñes Tu Vida, Vive Tus Sueños“
    There is a driving force more powerful than steam, electricity and nuclear power: the will.
    A.Einstein

Posting Permissions

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