1. ひじょうブレーキ   tire pressure   wheel   helmet   handbrake   Hint Half-n-half Clue   2. しゃりん   handbrake   pedal   tire pressure   wheel   Half-n-half Clue   3. けいてき   tricycle   horn   handbrake   engine   Half-n-half Clue   4. はいきかん   lock   tire pressure   exhaust pipe   tricycle   Half-n-half Clue   5. タイヤくうきあつ   sprocket   seat   wheel   tire pressure   Half-n-half Clue   6. へんそくレバー   engine   shock absorber   gear lever   seat   Half-n-half Clue   7. あんぜんぼうし   helmet   shock absorber   horn   lock   Half-n-half Clue