Advertise on Bikeforums.net



User Tag List

Results 1 to 9 of 9
  1. #1
    Senior Member
    Join Date
    Oct 2009
    Location
    England, currently dividing my time between university in Guildford and home just outside Reading
    My Bikes
    Too many to list here!
    Posts
    1,769
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Tubing for very long cruiser frame

    If I wanted to build something like this
    http://i570.photobucket.com/albums/s.../Photo1021.jpg

    What sort of tubing would I need? Obviously it has to be stronger than ordinary bike tubing, but how much thicker would the tube walls have to be (assuming steel tubes)
    Any ideas where I might get tubing like that in the UK?
    Thanks

  2. #2
    Bicyclerider4life
    Join Date
    Aug 2006
    Location
    Florida and Idaho
    My Bikes
    Huffy Beach Cruisers, Miami Sun Trike, Vertical PK7, KHS Montana Summit, Giant Cypress DX, Schwinn OTC Stingray
    Posts
    547
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Foam filled 1 1/4 inch stainless steel exhaust pipe for the main frame might work.
    Last edited by bicyclridr4life; 12-30-09 at 01:49 PM.
    "Whenever I see an adult riding a bicycle, I know there is hope for mankind." (H. G. Wells)

  3. #3
    Decrepit Member Scooper's Avatar
    Join Date
    Aug 2005
    Location
    San Francisco California
    My Bikes
    2007 Waterford 953 RS-22
    Posts
    8,530
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You'll need some thick walled straight gauge (non-butted) chromoly tubing. Try calling Ceeway on 1322 442990 (44 1322 442990 outside U.K.) and discuss your application with them.

    I hope you're accomplished at fillet brazing or TIG welding.
    - Stan

  4. #4
    Senior Member
    Join Date
    Oct 2008
    Posts
    2,930
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Airburst View Post
    If I wanted to build something like this
    What sort of tubing would I need? Obviously it has to be stronger than ordinary bike tubing, but how much thicker would the tube walls have to be (assuming steel tubes)
    I think you'd want stiffer than normal tubing due to the larger lengths. Look for larger diameter (with same wall thickness to start) to gain stiffness.

    Commercial metal supply houses often carry steel and aluminum tubing in various shapes (circular, ellipitical, square, rectangular,...) and sizes.

  5. #5
    Senior Member PaPa's Avatar
    Join Date
    May 2003
    Location
    Idaho
    Posts
    496
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Airburst View Post
    If I wanted to build something like this
    http://i570.photobucket.com/albums/s.../Photo1021.jpg

    What sort of tubing would I need? Obviously it has to be stronger than ordinary bike tubing, but how much thicker would the tube walls have to be (assuming steel tubes)
    Any ideas where I might get tubing like that in the UK?
    Thanks
    1-5/8" x 16ga exhaust tubing will be fine. If you weight much more than 90kg (200 lbs), then use 1-3/4" x 16ga for the lower. Unlike thinwall chromoly (which must be bent with expensive mandrel benders), mild steel exhaust tubing bends easily, is inexpensive and not as fussy about the welding process. Remember, the majority of your weight is carried by the rear wheel so you don't need large diameters or heavy wall thickness.

  6. #6
    :)
    Join Date
    Nov 2006
    Location
    duluth
    My Bikes
    '07 Pista, '09 Fantom Cross Uno, '8? Miyata, '67 Stingray, '0? Zoo mod trials, Tallbike, Chopper, '73 Schwinn Collegiate, '67 Triumph Chopper, '69 CB350, '58 BSA Spitfire, '73 CB450
    Posts
    3,391
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I've built all mine with tubing out of old Huffy/Murray bikes. Easy to cut and weld (even with my 220 stick weleder), just butt tubes up and weld (usually slug 'em) to make them long enough.
    Quote Originally Posted by Santaria View Post
    because physics has more street cred than tarckstars.

  7. #7
    Senior Member
    Join Date
    Dec 2007
    Posts
    256
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by ianjk View Post
    I've built all mine with tubing out of old Huffy/Murray bikes. Easy to cut and weld (even with my 220 stick weleder), just butt tubes up and weld (usually slug 'em) to make them long enough.

    same for me. for my usual stretch i use a beach cruiser type frame and only add a couple tubes to get what i want. a piece of gutted coneyor tube i get from work (but i believe something like a chain link fence post would work just as well) and a piece of black pipe to extend the top tube. the rest is from the bike it's self.

    the last one i played with is all bike frame parts. one main frame to start and kept an eye out for other frames with the right size/curve/leanth tubing to get what i needed.

  8. #8
    Newbie
    Join Date
    Jan 2010
    Posts
    2
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for sharing your views on the topic. It makes one think and look the other side of the story.
    chicago injury attorney

  9. #9
    Pedaled too far. Artkansas's Avatar
    Join Date
    Oct 2005
    Location
    La Petite Roche
    Posts
    12,197
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    You could always add a tube between the top tube and the bottom bracket for a little extra strength.
    "He who serves all, best serves himself" Jack London

    Quote Originally Posted by Bjforrestal View Post
    I don't care if you are on a unicycle, as long as you're not using a motor to get places you get props from me. We're here to support each other. Share ideas, and motivate one another to actually keep doing it.

Posting Permissions

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