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