1. pédale   pedal   tire   motorcycle   gear lever   Hint Half-n-half Clue   2. chaîne   sprocket   spoke   chain   pump   Half-n-half Clue   3. pignon   horn   tire   sprocket   helmet   Half-n-half Clue   4. tuyau d'echappement   handlebar   exhaust pipe   motorcycle   tire   Half-n-half Clue   5. soupape   seat   cable   valve   tricycle   Half-n-half Clue   6. moteur   exhaust pipe   lock   engine   scooter   Half-n-half Clue   7. siège   motorcycle   tricycle   gear lever   seat   Half-n-half Clue