Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    Air
    Air is offline
    Destroyer of Wheels Air's Avatar
    Join Date
    May 2006
    Location
    Creating some FA-Qs
    My Bikes
    Nishiki Sport, Downtube IXNS, 1950's MMB3 Russian Folding Bike, MTB
    Posts
    3,558
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)

    Is it possible to retrofit a coaster brake to a rear wheel?

    This will probably be a quick 'no' - but it's worth asking anyway. Just got a 48 spoke 20" wheel but realized when I got it that it didn't have a coaster brake. Is it possible to swap out the existing hub or does it require rebuilding the whole wheel? If it requires rebuilding what about turning this freewheel into a fixed wheel? I checked out Sheldon Brown's site but I wasn't totally sure if it was possible or not.

    Thanks!

  2. #2
    Bike Nurse Bike Nurse's Avatar
    Join Date
    Jun 2006
    Location
    Australia
    My Bikes
    A whole shop full
    Posts
    16
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Firstly ... what are you fitting the wheel to? If it is a BMX or some frame that is designed to take a 20" wheel with 110mm spacing then I'd save your money and time and buy a wheel already set up with a coaster hub ... + I don't recall ever seeing a coaster hub with 48 spoke holes so a rebuild might be out of the question ... ?? correct me if such a thing exists. There are fixed cogs available ... if your thighs can take the strain.
    Experience is Priceless!

  3. #3
    Rebel Thousandaire Ya Tu Sabes's Avatar
    Join Date
    Sep 2004
    Location
    Hartford, CT
    My Bikes
    Public D8, Yuba Mundo (cargo), Novara Buzz (1-speed, soon to be 2-speed w/ a kickback hub), Xootr 1-speed folder
    Posts
    733
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    So far as I know, the answer is no. You can't retrofit a coaster brake onto a regular freehub, 'cause the coaster brake mechanism is internal, so coaster hubs are made differently. But as Bike Nurse says, if you want a coaster brake wheel, you can probably get one for cheap. Shoot, if quality isn't an issue, buy a kid's one-speed from Salvation Army, steal the rear hub from that, get the rims and spokes of your choosing, and build the low-end coaster brake wheel of your dreams.

  4. #4
    Air
    Air is offline
    Destroyer of Wheels Air's Avatar
    Join Date
    May 2006
    Location
    Creating some FA-Qs
    My Bikes
    Nishiki Sport, Downtube IXNS, 1950's MMB3 Russian Folding Bike, MTB
    Posts
    3,558
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Cool - thanks guys!

    I have a vintage Russian folding bike from the 50's and the rear wheel is in pretty bad shape (and my 260 pound frame isn't helping it much!). The wheels are 20" so it doesn't seem to be a problem swapping them out.

    I actually found a 48 spoke rim with a coaster brake on ebay - it's on the way Hopefully I can sell the other rim (which seems to be in really good condition) or perhaps convert it to a fixed wheel. I didn't think about the spacing - hopefully it won't be a problem that a different sized nut couldn't fix

    Could you point me in the direction of the fixed cog conversions? I've done some google searches but don't know if what I've come up with will do the job.

    Thanks again!

  5. #5
    Senior Member DieselDan's Avatar
    Join Date
    Mar 2003
    Location
    Beaufort, South Carolina, USA and surrounding islands.
    My Bikes
    Cannondale R500, Motobecane Messenger
    Posts
    8,524
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Air
    Could you point me in the direction of the fixed cog conversions? I've done some google searches but don't know if what I've come up with will do the job.

    Thanks again!
    Remove the clutch spring and brake shoes from inside the coaster brake hub, then weld the driver into the hub.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  6. #6
    Senior Member
    Join Date
    Jan 2006
    Location
    Austin TX
    Posts
    455
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    How is this conversion, durability wise?

  7. #7
    Senior Member
    Join Date
    Mar 2006
    Posts
    2,013
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    "swap out the existing hub "

    Sounds impossible to me. Some Internally geared hubs have the brake in a separate unit. I guess there might be some heroic technique to mate a derailleur rear wheel with an internally geared hubs coaster brake. Please post pictures if you pull it off.
    2000 Montague CX, I do not recommend it, but still ride it.
    Strida 3, I recommend it for rides < 10mi wo steep hills.
    2006 Rowbike 720 Sport, I recommend it as an exercise bike.
    1996 Birdy, Recommend.
    Wieleder CARiBIKE (folding), decent frame.

Posting Permissions

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