1. 錠   exhaust pipe   tricycle   engine   lock   Hint Half-n-half Clue   2. 排気管   chain   pedal   tire pressure   exhaust pipe   Half-n-half Clue   3. 踏み板   pedal   sprocket   shock absorber   lock   Half-n-half Clue   4. 非常ブレーキ   lock   handbrake   cable   wheel   Half-n-half Clue   5. 三輪車   sprocket   chain   tricycle   engine   Half-n-half Clue   6. 警笛   pedal   horn   lock   exhaust pipe   Half-n-half Clue   7. 座席   lock   sprocket   seat   helmet   Half-n-half Clue