Vector Pedal Pod do not let pedal issues keep you from training. Replace your pedal pods individually or together - and on either pedal, left or right. With additional crank arm clearance (thickness and width), Vector fits almost any bike. The standard pedal pods fit crank arms 12-15 mm in thickness and 38 mm in width. The large pedal pods fit crank arms 15-18 mm in thickness and up to 44 mm in width. (Replacing a pedal pod does not impact Vector power or cadence accuracy) Features ANT+ transmitters User-replaceable battery (2032 coin cell) 175 hours of active cycling operation