[Tom Stanton] wanted to see if supercaps have any practical use on e-bikes, and built a DIY electric motor in the process. One of the problems with supercaps is the rapid voltage drop during ...
If you’re [James Bruton], you design and build a mini electric ... the motor heated up and the mounting screws got hot enough to melt the plastic. But other than that, the bike worked great ...
Rubbee consists of a polyurethane roller wired to a 14.4-volt battery pack. The doohickey presses the roller against the back tire of the bike, propelling it with the force of wheel-on-wheel friction ...