機器
bicycle
bike
black
chain
chainwheel
circle
cog
cogwheel
color
colorful
crank
cycle
cyclist
design
drive
element
equipment
flat
gear
gradient
graphic
icon
illustration
isolated
mechanism
metal
mountain
part
pedal
pictogram
power
race
ride
rotation
set
sign
simple
speed
sport
sprocket
symbol
technology
transmission
transportation
vehicle
wheel
white