It features a long lasting 4-Pawl design that is nice and loud. 14T and 15T Sizes will work with Flip Flop Hubs only. 3/32" Teeth. 3/32" sized freewheels work on both 3/32" and 1/8" chains. We will send your selected color choice, but note on your order comments if the other color would also be good. This freewheel is Right Side Drive.