Kinetic Drive Test

I intercepted a parked two-wheeled craft docked against a sidewalk rail. Mechanical propulsion unit located! I scrambled up onto the lower pedal, planted my feet firmly onto the textured rubber ridges, and threw my weight forward. Clack-whirr—the crank arm swung down in a smooth arc, engaging the metal chain with a delightful series of tiny clicks! Fine street dust puffed against my plush ankles, but the rotational physics were completely seamless. I crouched on the pedal to maintain balance, watching the gear teeth lock smoothly into each link. Drivetrain calibration: optimal!