SRM Cannondale Si Power Meter 130 BCD

Fits SI, SL, SISL and SISL2 cranks 

Connects to garmin or other computer via ANT+ or with an SRM PC unit 

Some minor signs of wear that is actually covered up by the crank arm once installed, but in great condition. It was just serviced by SRM which includes calibration and new battery.

A cadence battery is not included but I recommend a the fouriers chain catcher with magnet which can be purchased cheap online.