Geared imp. & p. p. : of Gear

Example:
Adding an internally Geared up and a Schlumpf to a fixed gear bicycle?

Taxonomy
gear, teeth, pitch, helical gears, ratio, worm, ANSI, AGMA, G05, gear teeth, spur gears, circular pitch, involute, thickness, velocity ratio, axis, shaft, diameter.

Defination from the web:
geared devices can transmit forces at different speeds, torques, or in a different direction, from the power source. ... interlocking of the teeth in a pair of meshing gears means that their circumferences necessarily move at the same ...