Big Foot Road Bicycle Bike Aluminum Alloy Platform Pedals, MT Bike Pedals, CNC Steel Axle 9/16", iParaAiluRy Material:Aluminium alloy + Steel Axle, color:Black. Size:105*80*30mm,Weight:466g / pair, Spindle: 9/16". Bearing:steel balls bearing,can bear more than 150kg of wieght in totall. The pedals are designed for mountain bike riding,road bike riding and folding bike riding, downhill bike riding or stunt riding are not recommended. Quality Gauranteed,we put 90kg of weight on each pedal, then rotated it 100 rev / min, the pedals rotated 1 million times without any wear and tear!