The garmin vector 2s upgrade pedal right hand side completes your one sided garmin vector kit with the purchase of this right hand side vector 2s upgrade power pedal vector 2s can be upgraded to a dual sensing vector system benefits include additional metrics including leftright balance and beyond watts pedalling dynamics vector works with any power compatible ant head unit but is optimised for garmin edge 1000 510 and 810 overall if you are looking at getting more precise results or you