2012 Shimano PD-7900 Dura Ace pedal is 30 grams lighter than previous Dura Ace pedals thanks to the new carbon injected-molded body.  The new axle and bearings are contained within a light but sturdy billet aluminum sleeve bonded to the pedal exterior. The pedal retains three sets of bearings in each pedal for axle support, pedal stability, and smooth rotation, regardless of loads. A redesigned stainless steel cleat contact plate provides durability without inhibiting the free float necessary between cleat and pedal body for efficient bio-mechanics.  Staying true the Dura Ace design, you will still enjoy the wider platform, which optimizes stability of the foot and power transfer.