Extended 20mm. The bicycle pedal shaft core is extended by 20 mm/0.79'', providing more foot clearance and allowing you to enjoy a more comfortable riding. Stain Preventation. Broaden stance width 20mm for cyclists needing help with knees-out, excessive toes-out, extra wide feet, or wide hips to avoid discomfort and knee strain. Heat resistant&Corrosive. Made of titanium alloy, which is characterized by high intensity, low density, light weight, and good resistance to high temperature and corrosion. Effort-Saving. Prolong the pedal by 20 mm will act as a leverage that can save more labor during your riding. Anti-Attrition. Protect the screw thread of the crank, no worry about the wear of the crank thread.