Difference between the crank shortener and the ROM-Pedal - Fietsen op Maat - ROM-PedalThe picture illustrates the difference between the two solutions. The key distinction lies in how they affect your leg extension. The ROM-Pedal maintains your leg extension while allowing for adjustments in knee bend, whereas the crank shortener reduces leg extension, resulting in an asymmetrical cycling motion that can be uncomfortable. This is similar to walking with one leg on the road and the other on the sidewalk. Most people experience limitations in bending rather than extension. For more information, please contact us.