diff --git a/src/bike.cpp b/src/bike.cpp
index c34098c3e..4c7a85c13 100644
--- a/src/bike.cpp
+++ b/src/bike.cpp
@@ -288,6 +288,8 @@ uint16_t bike::wattFromHR(bool useSpeedAndCadence) {
         } else {
             watt = 0;
         }
+    } else {
+        watt = currentCadence().value() * 1.2; // random value cloned from Zwift when HR is not available
     }
     return watt;
 }