1. presión del neumático   gear lever   motorcycle   scooter   tire pressure   Hint Half-n-half Clue   2. inflador, bomba   valve   spoke   chain   pump   Half-n-half Clue   3. piñón, diente de engranaje   handlebar   sprocket   gear lever   motorcycle   Half-n-half Clue   4. casco   helmet   handlebar   wheel   pump   Half-n-half Clue   5. bocina   scooter   seat   horn   brake   Half-n-half Clue   6. válvula   tricycle   lock   gear lever   valve   Half-n-half Clue   7. neumático   engine   scooter   cable   tire   Half-n-half Clue