1. 闸   brake   wheel   engine   gear lever   Hint Half-n-half Clue   2. 脚蹬   seat   tire   pedal   handlebar   Half-n-half Clue   3. 排气管   engine   exhaust pipe   pedal   spoke   Half-n-half Clue   4. 内胎   inner tube   handlebar   chain   tire pressure   Half-n-half Clue   5. 锁   seat   lock   scooter   shock absorber   Half-n-half Clue   6. 轮幅   exhaust pipe   engine   spoke   brake   Half-n-half Clue   7. 摩托车   motorcycle   wheel   spoke   inner tube   Half-n-half Clue