<p>Note Note Notes:</p> <p> </p> <p>1. Please check the interface of your right crank arm is square or diamond. Keep both left and right arms have the same hole;Some GYM bikes may not be available, please confirm the length and connection port;</p> <p> </p> <p>2.The hole spacing of this crank arm is 170mm, Please make sure that the two center of holes length of your original crank is 170mm </p>