Review on Psler Bike Chain Tensioner With Derailleur Hang Bike Chain Guide For Folding Bicycle Cycling Tool Replacement Accessories by Anthony Tegan

i had a brand new bike and so it had a new chain and sprocket. for some reason i guess the chain needed to like break in or something. i had to make the tensioner really tight so the chain would stop skipping. once the chain got stretched a bit it ran good. you can take it apart and wind the spring up tighter. i wish it was steel. i have no need for lighter weight being this is a motorized bike.