A chain-drive bike will never be completely silent as you have metal-on-metal contact, but it should not be obnoxiously loud. If you have had the bike for a while and it is starting to get too loud...
Jump Ring Troubleshooting and Correction
Has your bikes Belt fallen off between the Middle Axle Pulley and the frame of the bike? Has the Middle Axle Pulley started rubbing on the inside of the ...