Reliable and Trustworthy SPD Pedal The PD-M520 is a great choice if you’re looking for a classic SPD pedal with a well tested and trustworthy design. The PD-M520 has a compact body and open binding for reliable clipping in and out in all conditions. A chrome-molly spindle and sealed bearing cartridge axle ensure durable and low-maintenance performance. Optimal Pedaling The PD-M520 SPD pedal will improve your pedaling efficiency and power transfer. By clipping in more of your effort is transferred from you to your bike. The result? You go faster. Coupled with its strong chrome-molly spindle and sealed bearings cartridge axle the PD-M520 is all about durable performance at an affordable cost. Reliable Engagement and Release The PD-M520’s open binding mechanism allows mud and debris to be pushed out when you step into the pedal. Its superior mud-shedding design means reliable clipping in and out in all conditions. The tension settings are adjustable so you can customize the force required to clip in and out. FEATURES Open binding design Excellent at shedding mud and debris for reliable performance in all conditions Sealed Bearings Sealed bearing cartridge axle for low-maintenance Chrome-Molly Spindle For strength and durability Adjustable Tension Settings Customize how easy or hard it is to clip in and out of the pedal