1. densen、keeburu   horn   cable   spoke   tire pressure   Hint Half-n-half Clue   2. outobai、baiku   tire   tire pressure   valve   motorcycle   Half-n-half Clue   3. kusari、che-n   cable   engine   chain   brake   Half-n-half Clue   4. barubu   pump   valve   handlebar   brake   Half-n-half Clue   5. kikan、injin   wheel   pedal   cable   engine   Half-n-half Clue   6. jou   tricycle   horn   lock   sprocket   Half-n-half Clue   7. herumetto   wheel   helmet   tire pressure   scooter   Half-n-half Clue