diff --git a/common/config/devConf.h b/common/config/devConf.h
index 78681ec7..deea6aa2 100644
--- a/common/config/devConf.h
+++ b/common/config/devConf.h
@@ -23,7 +23,13 @@ static constexpr uint32_t DEFAULT_L3G_SPEED = 976'000;
 static constexpr uint32_t L3G_TRANSITION_DELAY = 5000;
 static constexpr spi::SpiModes DEFAULT_L3G_MODE = spi::SpiModes::MODE_3;
 
-static constexpr uint32_t DEFAULT_MAX_1227_SPEED = 3'900'000;
+/**
+ * Some MAX1227 could not be reached with frequencies around 4 MHz. Maybe this is caused by
+ * the decoder and buffer circuits. Thus frequency is here defined to 1 MHz.
+ */
+static const uint32_t SUS_MAX1227_SPI_FREQ = 976'000;
+
+static constexpr uint32_t DEFAULT_MAX_1227_SPEED = 976'000;
 static constexpr spi::SpiModes DEFAULT_MAX_1227_MODE = spi::SpiModes::MODE_3;
 
 static constexpr uint32_t DEFAULT_ADIS16507_SPEED = 976'000;