Spindle Material: ChromolyTechnology: SpringBody Material: CompositePlatform Material: CompositePlatform area: 400 mm²Platform width: 60 mmTotal stack height (pedal + cleat): 17.8mm (11.5 + 6.3mm)Q Factor: 53 mmRetention: 8 to 12Cleats: Keo GripWeight: 350g (Pair with cleats)