1. motore   tricycle   engine   shock absorber   cable   Hint Half-n-half Clue   2. freno a mano   handbrake   lock   tire   tire pressure   Half-n-half Clue   3. manubrio   lock   handlebar   horn   chain   Half-n-half Clue   4. casco   engine   cable   tire pressure   helmet   Half-n-half Clue   5. ruota   spoke   wheel   tire   tire pressure   Half-n-half Clue   6. dente di ruota   sprocket   spoke   engine   tire   Half-n-half Clue   7. camera d'aria   horn   spoke   inner tube   tire pressure   Half-n-half Clue