[ IRON CONSTRUCTION] Crafted from robust iron material, this exercise bike crank weighs approximately 300g per piece, ensuring stability and durability for your indoor cycling .
[PRECISE DIMENSIONS] The crank features a center distance of 127mm between holes, with a round hole for pedals measuring 9/16 20 and a square hole of 13x13mm, making it compatible with a variety of exercise bikes.
[EASY INSTALLATION] Designed for effortless installation, simply turn the crank clockwise to attach it securely to either the left or right side of your exercise bike.
[LONG-LASTING FINISH] The outer paint treatment enhances the longevity of the crank, providing protection against wear and tear during your intense workouts.
[SIZING REMINDER] Please refer to your own sizing chart for compatibility rather than relying on Amazon's size guide.