diff --git a/js/flightlog.js b/js/flightlog.js
index 7d3c3887..a4f3375e 100644
--- a/js/flightlog.js
+++ b/js/flightlog.js
@@ -1146,8 +1146,8 @@ FlightLog.prototype.rcCommandRawToThrottle = function(value) {
 };
 
 FlightLog.prototype.rcMotorRawToPct = function(value) {
-    // Motor displayed as percentage
-    return Math.min(Math.max(((value - this.getSysConfig().motorOutput[0]) / (this.getSysConfig().motorOutput[1] - this.getSysConfig().motorOutput[0])) * 100.0, 0.0),100.0);
+    // Motor displayed as percentage    
+    return ((value - DSHOT_MIN_VALUE) / DSHOT_RANGE) * 100;
 };
 
 FlightLog.prototype.getPIDPercentage = function(value) {
diff --git a/js/flightlog_fielddefs.js b/js/flightlog_fielddefs.js
index a7d05990..1bf06642 100644
--- a/js/flightlog_fielddefs.js
+++ b/js/flightlog_fielddefs.js
@@ -10,6 +10,12 @@ function makeReadOnly(x) {
     return x;
 }
 
+// Some constants used at different places
+const DSHOT_MIN_VALUE = 48;
+const DSHOT_MAX_VALUE = 2047;
+const DSHOT_RANGE = DSHOT_MAX_VALUE - DSHOT_MIN_VALUE;
+
+// Fields definitions for lists
 var 
     FlightLogEvent = makeReadOnly({
         SYNC_BEEP: 0,
diff --git a/js/graph_config.js b/js/graph_config.js
index def6cd8b..c440a30c 100644
--- a/js/graph_config.js
+++ b/js/graph_config.js
@@ -261,9 +261,9 @@ GraphConfig.load = function(config) {
         try {
             if (fieldName.match(/^motor\[/)) {
                 return {
-                    offset: -(sysConfig.motorOutput[1] + sysConfig.motorOutput[0]) / 2,
+                    offset: -(DSHOT_MIN_VALUE + (DSHOT_RANGE / 2)),
                     power: 1.0,
-                    inputRange: (sysConfig.motorOutput[1] - sysConfig.motorOutput[0]) / 2,
+                    inputRange: DSHOT_RANGE / 2,
                     outputRange: 1.0
                 };
             } else if (fieldName.match(/^servo\[/)) {