CHIGEE tire pressure sensors and BMW’s factory tire pressure monitoring system (TPMS) can show different values. BMW RDC compensates pressure to 20 °C (68 °F); CHIGEE sensors show the measured pressure as tire temperature changes.
Compare the readings
The table below compares BMW factory RDC readings with readings from CHIGEE TPMS sensors, not BMW data passed through to a CHIGEE Display.
System | Sensor installation | Reading shown |
BMW factory TPMS (RDC) | Inside the tire | Pressure compensated to 20 °C (68 °F) |
CHIGEE TPMS | External or internal sensors | Measured pressure that changes with tire temperature |
As tires warm during riding, measured pressure rises. When the tires cool, measured pressure falls. BMW temperature compensation and CHIGEE measurement can therefore produce different displayed values.