diff --git a/README.md b/README.md
index 0371dfa3380c363df7c1abcda3f76756b6d09114..b6a1203e2ba05e087a2d5d9c966def449ebe3dba 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,10 @@ To read positions from the crazyflie, use
 `z = bot.get_z()`,
 `theta = bot.get_theta()`.
 
+### Maximum servo speed
+
+Currently, the maximum value to write to servo speed is 1022. Any value above (below) 1022 (-1022) is rounded down (up) on the server side.
+
 **Example:**
 Connect to a robot at localhost, make it spin in a circle and read the x and y positions.
 ```