Size specific elite-level platform pedal provides optimal shoe/pedal interface. Details Magnesium pedal body for weight reduction Optimal surface area  Minimal body profile - 16mm thin Concave pin profile and 10 adjustable pins per side for grip Premium bearings and seal system Stamp small recommended for shoe sizes: 4-9 UK // 37-43 eu Stamp large recommended for shoe sizes: 9-14 UK // 43-49 eu Specs adjustable pins 10 per side body material AM60B Magnesium Alloy endcap T15 footprint small footprint large 100mm x 100mm 114m x 111mm inner bearing type Igus Bearing max rider weight No restriction outer bearing type Double Cartridge Bearing shoe size US 5-10 // EU 37-43 spindle material Forged SCM 415 Chromoly Steel warranty 5 years weight small weight large 351g per pair 386g per pair