Micro-knurled pedal body made of durable virgin thermoplastic 113mm x 112.5mm x 21.5mm concave platform is perfect for larger feet 6mm broached 9/16` CNC chromoly spindle 2 self lubricating composite DU bearings Stainless steel M4-9mm replaceable pins 9/16`2 SleeveTanCompositeUPC/EAN/GTIN: 888571101957