Looking for an answer to the question: Are 3 piece cranks better? On this page, we have gathered for you the most accurate and comprehensive information that will fully answer the question: Are 3 piece cranks better? 3 Piece Crank. As you might have guessed these are made of three pieces – 2 arms and spindle. The thread used to attach the arms is 9/16 inch. … [Read more...] about Are 3 piece cranks better?