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