Crankbrothers Stamp Flat Pedal for BMX/MTB Bike - Bicycle Pedal, Minimalist Profile, Adjustable GripThe flat pedal from crankbrothers is engineered to provide the optimal interface between shoe and pedal. The 13mm external and 11mm internal thickness on the level 7 stamp provide a low profile concave pedal body that your feet sit into. Adjustable pins allow the rider to fine tune the feel. The outsole profiles of the top mountain bike show brands were analysed and the data used to create two distinct surface areas to optimise shoe pedal contact