It's a 35 pound leather executive office chair connected to a 16" (little girl's) Princess bike re-welded into a recumbent (recliner bike) and using a piece of another donor bike frame.
I built it in honor of "Bike to Work Day".
If you like fun/unusual home built bikes... check out my hobby site Woodenbikes.com
Step 1: Design Your Bike Using a CAD System (Cardboard Aided Design)
For detailed instruction on designing a sweet handling recumbent visit www.bikesmithdesign.com
Step 2: Cut and Miter the Bike Tubes for Joints
Step 3: Clamp or Strap Tubes Together for Welding
Tack welds are small to avoid melting too much of the nylon strap.
Step 4: Weld It Together
*MIG = Metal, Inert Gas sheilded welding. however I use a cheaper flux cored feed wire instead of gas sheilding. It helps keep my weld quality low so I won't obsess as much.
Step 5: Reinforce the Seatpost
I added internal steel tubing reinforcement to strengthen the seat post since I weigh more than most little princesses and the office chair lets me put lots of leverage (bending moment) on the seat post.
I split the office chair's own seat post and inserted the bike's reinfored post into the chair's seat post. I welded the split back together.
Step 6: Install Chain Roller
Step 7: Reposition the Chair
The plywood board has holes for mounting to the chair and to the chair post platform.
The old brake cable wire in front is holding the front of the chair down and to keep it from rotating around the seat post since there is a lot of twisting leverage from the wide butt in the wide chair.
Step 8: Riding the Office Chair (AKA Loose Nut Behind the Handle Bars)
That little tail sticking out in back is a side view of a 3 foot long 1x10 wooden board between the chair and chair mounting bracket on the seat post. It allowed the chair to be offset from the post about 5 inches forward leaving a back shelf for storage.
Woodenbikes.com disclaimer: None of my 15 home built bikes (to date) are made from 100% wood. Wood is not my religion. Wood is a conveneint and entertaining construction material for some parts of my bikes. Your Apple computer may not be made of 100% apples either. Open it up if you don't believe me.
Step 9: Where Do We Get the Supplies?
Dumpster Dipping (no diving allowed, you could hurt yourself) is the way to go.
Sometimes I feel like "Dumpstermiah Johnson" while I'm "trolling the suburban trap-line". That's where I found the 35 pound leather executive chair, and the Princess bike, donor bike and paint and extra bike chains joined together to reach everything.