Make a Garden Cultivator From Recycled Bikes

Use old bike parts to build the “hoe-stess with the mostest.”

| May/June 1984

  • Garden Cultivator
    Dennis's recycled cycle makes a terrific cultivator.
    PHOTO: MOTHER EARTH NEWS STAFF
  • Garden Cultivator Tines
    The bicycle-fork tines are fastened to the lower part of the frame with threaded rods.
    MOTHER EARTH NEWS STAFF
  • Garden Cultivator Handlebar Clamp
    Notches cut into the head tube provide a socket for the handlebar clamp.
    MOTHER EARTH NEWS STAFF
  • Garden Cultivator Row Marker
    The garden cultivator also works as a row marker.
    MOTHER EARTH NEWS STAFF

  • Garden Cultivator
  • Garden Cultivator Tines
  • Garden Cultivator Handlebar Clamp
  • Garden Cultivator Row Marker

In the Fabulous Bullwinkle Garden Cultivator, William and Jimmie Ruttencutter explained how they turned what they'd thought was a useless discarded bicycle into a preposterous-lookingbut totally effectivepush-driven horticultural tool.

Recently we asked our resident junkophile, Dennis Burkholder, to exercise his imagination and try to develop some wheeled weeders of his own design—and though he came up with several viable loam looseners, the version that proved to be the easiest to piece together (and seemed to do the most between the rows) was simply a reincarnation of that old "velocipedes for vegetables" theme!

Now Dennis certainly wasn't trying to show up the Ruttencutters when he built his "Fabulous Burkholder Garden Cultivator," but we think that even those kind folks will have to admit that this second cousin to Bullwinkle is an improvement on the old "moose." It's easier to build and a bit more sturdy once put together, because the original bike frame remains intact.

In fact, the only drawback we can think of with the Burkholder design is that you'll need parts from two bicyclesor at least the front fork from a second oneto make the machine. But as Dennis points out, the components needn't be suitable for cycling, so "junk" is perfectly acceptable (though he does recommend that the wheel be fairly straight and possess enough spokes to keep it that way when in use).



The tool's construction couldn't be much simpler. To start, Dennis took a men's 26" bike and removed the front fork assembly, handlebar stem, crankset, brakes and cables, and both wheels from the frame. He then located a fork assembly from a second 26" bicycle and, using a hacksaw, cut the fork stems from both front wheel holders. (The stem is the tubular stub that fits into the head tube, or neck, of the bike. It's fairly difficult to saw through, so you might want to just leave both stems intact, since they won't be in the way.)

Next, he drilled a 3/8" hole crosswise through the seat tube at a point about 4" above its junction with the bottom bracket, then temporarily positioned the two bare forksbackward but prongs down—at either side of that frame member so that their four tubes protruded beneath the bottom bracket by 8" or so. By drilling through the innermost tubes at points in line with the 3/8" seat tube bore and the opening in the bottom bracket, he was able to lock the fork sets to the frame, using two 3/8" X 5 1/2" lengths of threaded rod and four nuts with lock washers.

Vicki Patton
4/7/2009 12:19:54 PM

Would love to see better pictures of this. Very interesting.







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