Drawbridge, lower chains: Listen & Download Lower chains, Drawbridge .mp3 Error! Change your browser, please! ⇓ Download Foot pump inflating a mattress ⚠ Chain hoist, Chain ⚠ Bicycle hand pump ⚠ Small hydraulic gear ⚠ Lower chains, Drawbridge ⚠ Drawbridge raise chains ⚠ On, Hydraulic mechanism, off ⚠ Mechanical sounds ⚠ Hand winch ⚠ Kick the bike speed switch ⚠ ★★★★★