1. Pedal   inner tube   motorcycle   horn   pedal   Hint Half-n-half Clue   2. Auspuffrohr   seat   gear lever   tricycle   exhaust pipe   Half-n-half Clue   3. Rad   scooter   tire pressure   engine   wheel   Half-n-half Clue   4. Lenkstange   tricycle   inner tube   handlebar   shock absorber   Half-n-half Clue   5. Zahn   scooter   chain   gear lever   sprocket   Half-n-half Clue   6. Dreirad   tricycle   tire pressure   handbrake   valve   Half-n-half Clue   7. Reifendruck   inner tube   brake   tire pressure   handbrake   Half-n-half Clue