adjustment
assemble
assembly
bicycle
bicycling
bike
business
cassette
cog
cogwheel
component
copy space
copyspace
cycle
disassemble
expert
expertise
fix
gear
gearing
hands
maintenance
male
man
mechanic
mechanical
mechanism
occupation
part
person
piece
real people
repair
repair shop
repairman
service
serviceman
spline
sprocket
technician
transport
transportation
unknown
unrecognizable
vehicle
work
worker
workplace
workshop