Why are there discrepancies between CHIGEE TPMS data and the BMW TPMS data?

Why are there discrepancies between CHIGEE TPMS data and the BMW TPMS data?

If you notice that CHIGEE TPMS consistently shows slightly higher pressure readings than BMW's factory system. This discrepancy is normal. 

System Comparison

BMW Factory TPMS: Static Measurement

BMW's factory TPMS uses an internal sensor system that:
  1. Is mounted inside the tire
  2. Measures pressure through tire deformation against the road
  3. Uses processed data that filters out pressure changes from temperature fluctuations
  4. Shows relatively stable readings across different riding conditions

CHIGEE TPMS: Dynamic Measurement

CHIGEE's TPMS provides real-time, dynamic measurements that:
  1. Is mounted outside the tire
  2. Reflects higher pressure readings at the valve stem location compared to internal measurements
  3. Shows natural pressure fluctuations as temperatures change during riding
  1. During rides, as tires warm up, pressure increases
  2. When stopped and cooling, pressure decreases


Why Readings Differ

Sensor Location

External valve stem sensors naturally show higher pressures than internal tire sensors.

Measurement Philosophy

  1. CHIGEE: Displays real-time, unfiltered data, capturing natural pressure changes as the tires heat up during riding.
  2. BMW: Displays processed, stabilized readings that filter out temperature-related variations.


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