Optimal surface areaMinimal profile 16mm thin10 adjustable pins per side for gripPremium bearings & seal systemStamp small recommended for shoe sizes: 5-10 (us) // 37-43 (eu)Stamp large recommended for shoe sizes: 10-15 (us) // 43-49 (eu)SPECS:BODY MATERIALA380 AluminumFOOTPRINT114mm x 111mmSHOE SIZEUS 5-10 // EU 37-43ADJUSTABLE PINS10 per sideINNER BEARING TYPEIgus BearingOUTER BEARING TYPEDouble Cartridge BearingENDCAPT15SPINDLE MATERIALForged SCM 415 Chromoly SteelMAX RIDER WEIGHTNo restrictionWEIGHT494g per pair