Advertise on Bikeforums.net



User Tag List

Results 1 to 10 of 10
  1. #1
    Pants are for suckaz HandsomeRyan's Avatar
    Join Date
    Mar 2007
    Location
    Mt. Airy, MD
    My Bikes
    Hardtail MTB, Fixed gear, and Commuter bike
    Posts
    2,579
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Reverse Trike Questions

    This seemed like the most logical forum to ask a few questions about designing/building a reverse trike type bicycle. I saw a contraption called the "Turf Trike" www.turftrike.com and decided that although I don't play golf, I love the upright reverse trike look. I want to design something similar to use for light cargo duty and just something different to ride around the local MUP's on. I have a few things I'm trying to work out:

    Where does one find bicycle wheels that have drum brakes buit into them? The TT uses drum brakes and this seems easier than trying to use rim brakes and cheaper than trying to use discs. (on the front wheels) Size doesn't matter becasue I'm going to start with the wheels and design backwards toward a donor bikes back half/drivetrain.

    I'm having trouble visualizing a simple but functional steering mechanism. I don't want to over engineer this but it seems most reverse trike and tadpole manufacterers don't like to post pictures of the steering mechanisms.

    How wide would 2 wheels that do not lean need to be mounted to be stable?

    If anyone has pictures or links to reverse trike's that might be helpful I'd appreciate it. I have done some searching and checked out some of the cargo reverse trikes but many of them are much larger than what I need.

    Thanks!

  2. #2
    Uber Goober StephenH's Avatar
    Join Date
    Sep 2007
    Location
    Dallas area, Texas
    Posts
    10,303
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    " I'm having trouble visualizing a simple but functional steering mechanism."- If you'll notice on the cargo-type trikes, the "handlebar" just swivels the whole front end of the thing. The main issue is that you have to have the swivel vertical, rather than canted back like on a normal bike, or else things lean when you steer.

    "How wide would 2 wheels that do not lean need to be mounted to be stable?" That depends on how fast you go and how high the load is- no good answer there.

    One other item I've gleaned from reading about the cargo trikes is that they are not necessarily stable when empty. On a normal bike, you keep yourself upright by steering. On the reverse trikes, the steering response is much slower, but the load when empty (ie, yourself) is positioned over the rear wheel rather than the front. I noticed on the Husky web page, they don't even recommend riding them when completely empty.

    Schwinn once upon a time made a reverse trike where both front wheels swiveled like on a car (and like on a turf trike). I saw one in Ebay a while back, think it went for $75 or something, with local pickup. But it would be cool to ride. It used handlebars and a tie-rod system.

  3. #3
    Sister Annie Sianelle's Avatar
    Join Date
    Jul 2007
    Location
    Hauraki Plains District, New Zealand
    My Bikes
    Retro Hercules adult tricycle, 1953 Hercules ladies roadster, 1947 Raleigh ladies sports, 1950s Wearwell fixed gear 'Club' model, 1980s Malvern Star 'Super Star', 1980s Healing GTX-105 Arabesque, & etc & etc.......
    Posts
    1,520
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)












    Hope these pictures help. I'll have a deeper dig into my archives and see what else I can find.
    OMNIPOTENS aeterne Deus, qui nos secundum imaginem Tuam plasmasti, et omnia bona, vera, pulchra, praesertim in divina persona Unigeniti Filii Tui Domini nostri Iesu Christi, quaerere iussisti, praesta quaesumus ut, per intercessionem Sancti Isidori, Episcopi et Doctoris, in peregrinationibus per interrete factis et manus oculosque ad quae Tibi sunt placita intendamus et omnes quos convenimus cum caritate ac patientia accipiamus. Per Christum Dominum nostrum. Amen.

  4. #4
    Member
    Join Date
    Nov 2007
    Posts
    36
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I won't be much help here, but here's a link to the worksman:

    http://www.worksman.com/frontload.html

  5. #5
    Senior Member
    Join Date
    Nov 2006
    Posts
    467
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Also take a look at the Nihola
    http://nihola.info/en/nihola+bikes/cigar+family/

    I've test-ridden one, and the handling was brilliant. Very stable cornering, and you could easily recover from too-sharp a turn.

  6. #6
    holyrollin' FlatTop's Avatar
    Join Date
    Jun 2005
    Location
    L.B.N.J.U.S.A.
    My Bikes
    Schwinn Racer(hot rod 3 sp.), noname cantilever frame 1 sp., Peugeot U-O8, Kia 10 sp., soon-to-be-custom Sears Free Spirit 3sp.(project), department store mountain bike 21 sp.
    Posts
    1,322
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Try to get the Ackerman right. It will prevent tire scrub, which will make your rig more efficient and pleasant to ride.

    http://www.muller.net/mullermachine/docs/ackerman.html

  7. #7
    Sister Annie Sianelle's Avatar
    Join Date
    Jul 2007
    Location
    Hauraki Plains District, New Zealand
    My Bikes
    Retro Hercules adult tricycle, 1953 Hercules ladies roadster, 1947 Raleigh ladies sports, 1950s Wearwell fixed gear 'Club' model, 1980s Malvern Star 'Super Star', 1980s Healing GTX-105 Arabesque, & etc & etc.......
    Posts
    1,520
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    OMNIPOTENS aeterne Deus, qui nos secundum imaginem Tuam plasmasti, et omnia bona, vera, pulchra, praesertim in divina persona Unigeniti Filii Tui Domini nostri Iesu Christi, quaerere iussisti, praesta quaesumus ut, per intercessionem Sancti Isidori, Episcopi et Doctoris, in peregrinationibus per interrete factis et manus oculosque ad quae Tibi sunt placita intendamus et omnes quos convenimus cum caritate ac patientia accipiamus. Per Christum Dominum nostrum. Amen.

  8. #8
    Pants are for suckaz HandsomeRyan's Avatar
    Join Date
    Mar 2007
    Location
    Mt. Airy, MD
    My Bikes
    Hardtail MTB, Fixed gear, and Commuter bike
    Posts
    2,579
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Wow!

    Thanks for all the pictures and links. I'm in the process of looking for a donor bike for a back half and possibly some wheels to start off the front end design. That cigar family bike is very close to what I am hoping to build.

    I know some ATV's use a disc brake on the axle rather than on each wheel, can that be applied to bicycles as well? I ride up a .25mi hill to get to the grocery store and then ride back down it to get home so slowing and stopping a loaded bike is priority 1 but I'm not sure i have the fabrication ability to do a custom disc brake setup for each wheel.

  9. #9
    Senior Member
    Join Date
    Aug 2006
    Location
    Nor~Cal
    Posts
    1,671
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Someone I know has a two-in-front trike that has seating for two people behind the front wheels (with functional handlebars for both people) and one person with just a seat and cranks in front.

  10. #10
    meb
    meb is offline
    Senior Member meb's Avatar
    Join Date
    Aug 2003
    Location
    arlington, VA
    Posts
    1,745
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by HandsomeRyan View Post
    This seemed like the most logical forum to ask a few questions about designing/building a reverse trike type bicycle. I saw a contraption called the "Turf Trike" www.turftrike.com and decided that although I don't play golf, I love the upright reverse trike look. I want to design something similar to use for light cargo duty and just something different to ride around the local MUP's on. I have a few things I'm trying to work out:

    • Where does one find bicycle wheels that have drum brakes buit into them? The TT uses drum brakes and this seems easier than trying to use rim brakes and cheaper than trying to use discs. (on the front wheels) Size doesn't matter becasue I'm going to start with the wheels and design backwards toward a donor bikes back half/drivetrain.

    • I'm having trouble visualizing a simple but functional steering mechanism. I don't want to over engineer this but it seems most reverse trike and tadpole manufacterers don't like to post pictures of the steering mechanisms.

    • How wide would 2 wheels that do not lean need to be mounted to be stable?

    • If anyone has pictures or links to reverse trike's that might be helpful I'd appreciate it. I have done some searching and checked out some of the cargo reverse trikes but many of them are much larger than what I need.

    Thanks!
    2 wheels in front on a trike is "tadpole" arrangment as opposed to "delta" which has 1 wheel in front and 2 in the rear and as opposed to travelling backwards.

    Tadpoles are very common in the recumbent trike world:

    http://home.mindspring.com/~kb7mxu/index.htm

    http://www.bhsi.org/fourwhel.htm

    http://www.recumbents.com/home.asp

    http://www.autocanoe.com/

    Upright tadpoles are often referred to as Welsh trikes:


    http://www.roman-road.co.uk/conversions/index.htm


    http://www.roman-road.co.uk/
    Last edited by meb; 01-01-08 at 04:13 AM.

Posting Permissions

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