Quantity   Component name
1 × 24V 10-30A Power Source (Regulated Super Capacitor) From the previous project: https://hackaday.io/project/15327-a-super-capacitor-pulsed-power-24v-dc-supply
1 × 24V "250W" Geared DC Motor High Torque.
1 × 24V 20A DC-DC Variable Buck Converter Ideally should be as "dumb" as possible (i.e. no auto shutdown, current limits, etc).
1 × Throttle Controller A potentiometer or servo controller (depending on motor driver requirements).
1 × Bicycle Chain To link the DC motor to the read wheel spoke hub.
1 × Racheted Wheel Spoke Allows freewheeling in the reverse direction (i.e. motor disengage).
1 × A Bicycle Given by the Neighbour Preferably one that has the spoke threads missing so you can't connect the motor and waste a lot of time aimlessly.
1 × DC Power Meter HUD With voltage, current, power and amp-hours.
1 × High Power DC Switch (10A) As this is for safety only (i.e. please don't run away Mr. bicycle), it doesn't need to interrupt the actual load current normally (i.e. 10-30A).
1 × Fuse (30A) For use with Lipo batteries.
1 × LiPo Cell Voltage Monitor/Beeper LiPos are scary.
1 × Low Voltage Detector/Beeper Place just in front of the DC-DC converter to know when the cable wiring is too thin for the load (or the effective battery voltage has dropped too low). This is important as the DC-DC converter chosen limits power once the voltage drops to 20V at the point of connection.
1 × Lots of Velcro for LiPo Mounting Because if you drop it you'll be gripped by paranoia each time its charging (life extending paranoia).