1. válvula   lock   valve   engine   shock absorber   Hint Half-n-half Clue   2. triciclo   exhaust pipe   horn   seat   tricycle   Half-n-half Clue   3. traba   sprocket   gear lever   lock   tricycle   Half-n-half Clue   4. piñón, diente de engranaje   chain   gear lever   valve   sprocket   Half-n-half Clue   5. motor   brake   tire   engine   handlebar   Half-n-half Clue   6. tubo de escape   handlebar   cable   exhaust pipe   sprocket   Half-n-half Clue   7. cámara de aire   tire   inner tube   sprocket   shock absorber   Half-n-half Clue