I have been doing some work on refurbishing old donated bikes and cleaning them up. The first bike I restored was the Schwinn Thrasher shown in Fig. 1.
Fig. 1: Schwinn Thrasher single-speed conversion with BMX Handlebars.
I was inspired to do this as an old BMX bike turned up in the pile of donations. I started cleaning the old bike and noticed that there were no brakes. After I notice the brakes were missing, I asked Rocky, the owner what should be done. He said I could do a build so I took the handlebars and crank set off of the BMX bike. Prior to working on the BMX bike, I was polishing stainless steel using aluminum foil and degreaser. Since the Schwinn has a large amount of stainless steel, I removed the handlebars, Derailleurs, crank set, bottom bracket, and cassette. after these parts were removed, I polished the frame and wheels using the aluminum foil method. Next, I installed the BMX crank set and handlebars, a single speed sprocket onto the rear wheel, and re-installed the tires and filled them with air. I installed the brake levers from the Schwinn onto the BMX handlebars and installed a new cable on the rear brake because the original cable was too short. I reused the old rear cable for the front brake.
After installing the wheels and chain, as well re-assembling everything, I sprayed wax onto the frame, seat, and tires.
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