diff --git a/py/hexagram/tacho.py b/py/hexagram/tacho.py
index d9492db..f60db59 100644
--- a/py/hexagram/tacho.py
+++ b/py/hexagram/tacho.py
@@ -62,7 +62,7 @@ class Tacho(Dial):
 
         if self.shift_mode.value >= ShiftMode.SPORT.value \
           and self.gear.value >= Gear.GEAR_1.value:
-            text += 'R'
+            text += 'S'
 
         text += str(self.gear)