... .W/G.W:30/31kgs 4: meas; 46*28*21cm Chainwheel teeth28,32,36,40,44,48TCrank length89-175mmFinishCP or ED ... are specializing in the production of bicycle chainwheel crank , we can supply various kind of chainwheel and crank . if you are interesting ... me . we will supply high quality products to you bicycle chainwheel &crank