Hepingjiangenbo ZP-109S has a double-sided design. Makes pedaling more efficient with a wide variety of shoe and pedal styles. The large tread area and 16 metal bumps bring you good comfort and non-slip performance. HepingjiangenboZP-109S makes your daily riding more comfortable and exciting. Double-sided design: suitable for a variety of styles of shoes, providing more selectivity for urban commuting. Lightweight:Using ADC6 die-cast aluminum alloy, WEIGHT PEDAL / single weight 5.93oz. Spindle: made of high strength and durable chrome molybdenum steel, use 8mm Allen wrench for installation. Maintenance-free: Self-lubricating bearings, maintenance-free. Wide tread: Its large stepping area provides better stability, more efficient power transfer , and improved comfort for long distance riding. General system: ZERAY Type（SP-108) and SPD. Design to prevent installation deviation.