ドラマチック
劇的
acceleration
action
adventure
asphalt
athlete
bicycle
bicycling
bike
biker
biking
child
competion
competition
competitive
competitor
cycle
cyclist
danger
descend
excitement
exercise
extreme
fast
fun
lifestyle
male
momentum
motion
mountain
moving
nature
number
outdoor
race
racer
recreation
ride
road
schoolboy
speed
sport
starting
summer
trail
velocity