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PROFILE IMPERIAL CHAINWHEEL - CNC machined from 6061 Aluminum in the USA! - The Imperial is “bolt on” style and requires a sprocket bolt to be attached to crank arm. - Available for 19mm axles only. - 3/32″ tooth width. - Supplied with 19mm silver steel insert. - Designed for 3-Piece cranksets with 19mm spindles, not suitable 1pc cranks. - Available in more colours and sizes than any other sprocket.
