The LR data can be found within the original FIT file.
The decoding goes something like this…
The payload[2] basically checks if the PM is a LR or just a L.
// LR Pedal Power Balance
if ( payload[2]>>7 == 1 ) {
_data.rPwrBal = value;
_data.lPwrBal = 100-value;
} else {
_data.lPwrBal = value; // this essentially becomes 100%
_data.rPwrBal = 100-value; // this is meaningless. WHich means redundant code for me
}