1. けいてき   horn   engine   sprocket   handbrake   Hint Half-n-half Clue   2. ふみいた   chain   sprocket   tire pressure   pedal   Half-n-half Clue   3. くさり   wheel   seat   chain   sprocket   Half-n-half Clue   4. きかん   cable   seat   engine   horn   Half-n-half Clue   5. じょう   lock   wheel   seat   pedal   Half-n-half Clue   6. ひじょうブレーキ   handbrake   chain   horn   lock   Half-n-half Clue   7. ざせき   lock   engine   seat   chain   Half-n-half Clue