1:we can provide high quality produce whenever you need 2:lower price 3:better service Chainwheel teeth28,32,36,40,44,48TCrank length89-175mmFinishCP or ED Cotterpin or CoppterpinaddWith plastis/iron cover we are specializing in the production of bicycle chainwheel crank , we can supply various kind of chainwheel and crank . if you are interesting in my products , please contact me . we will ...