Should you replace valve stems when installing TPMS sensors?

RV Tire Safety with RV tire expert Roger Marble Got this question on an RV forum: “I understand from the thread that you should use metal tire stems with TPMS [tire pressure monitoring system] caps. The ends of the tire stems on our trailer are metal with the only visible rubber part right where they go through the wheel. I…

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Final results of TPMS comparison tests

RV Tire Safety with RV tire expert Roger Marble Comparison of TireTraker external vs. TST 507 internal TPMS: Summary and my opinion. Since March I have been conducting a comparison test of two different tire pressure monitoring systems (TPMS). When I started in March the ambient temperatures were down near freezing. I completed my comparison at the end of July…

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When should you replace your tires? How old is “too old”?

RV Tire Safety with RV tire expert Roger Marble A lot of folks talk about tire age and when they “age out.” Here is what a few tire companies have to say about passenger and light truck tire service life: Japan Automobile Tyre Manufacturers Association (JATMA) recommendation: At 5 years have tires inspected by “Qualified tire service person,” and no…

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Internal vs. external TPMS comparison – Hot ambient temperature

RV Tire Safety with RV tire expert Roger Marble Since March I have been conducting a comparison of a couple different Tire Pressure Monitoring Systems (TPMS). One from TST has internal sensors, as seen below right. Please note this shot shows the TPM sensor and the steel band retainer. I was in the process of removing the extra band material…

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