Garmin Rally RS/XC210 Power Meter Pedals Bundle - Clipless Composite/Alloy 9/16" BLK Pair Dual-Sensing Shimano SPD-SL/SPD MFPN=10461373 Newly redesigned X-Sync 2 provides

Newly redesigned X-Sync 2 provides better chain retention resulting in a smoother more efficient pedal feel

Zee M640 Shimano model # can be found on the fluid resevoir

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18mm max-performance steel

Garmin Rally RS/XC210 Power Meter Pedals Bundle - Clipless Composite/Alloy 9/16" BLK Pair Dual-Sensing Shimano SPD-SL/SPD MFPN=10461373 Newly redesigned X-Sync 2 providesPedal based power meter bundle for road (compatible with SHIMANO SPD SL cleats) and off road (compatible with SHIMANO SPD cleats) Pedals install like any other pedals and quickly transfer between bikes; removable power sensor allows for use with included road and off road pedal bodies Dual sensing for cycling dynamics data, including left right balance, seated versus standing, platform center offset and power phase New strain gauge and gyroscope make