installs

bicycle

frame

rear

derailleur

puller

ratchet

bearing

balls

wheel

hub

ball

unscrews

chain

gear

mountain

bike

mechanism

component

gearshift

repairman

fixing

repairer

wrench

serviceman

detail

maintenance

cassette

cycle

repair

service

lifestyle

biking

mechanic

occupation

tire

closeup

equipment

fix

job

workshop

work

business

man

professional

employee

transportation

connects

links

hits

pin

hammer