SHIMANO M-780 pedals XT XC SPD PDM780 maximum power efficiency for XC competitor.5 times more pedal and shoe contact in front of the pedal/PD-M770 shoe contact area. d adjustment anchor - AliExpress
SHIMANO PDM540 PD-M770/PD-M540/PD-M520 Body Cover & Mounting Bolt Y45D980 - Discovery Japan Mall
Shimano PD-M780 XT Race Pedals - Components
Are SPDs less efficient than "road" pedals? - YouTube