I know I asked the question on the forum and had several good answers but I wanted the official answer.So, my question to Bridgestone was "can you mount RFT tyres on rims not designed for runflats ie M wheels" Their answer was as follows "Hello, It really depends on what type of TPMS (Tyre Pressure Monitoring System) your vehicle has. If it has ABS based sensors (which calculate any discrepancy in rolling circumference to determine a pressure loss) then you can use the RFTs on those rims. If your vehicle has tyre valve sensors (which actively monitor the internal tyre pressure and alert when a penetration is detected) then you cannot use the RFTs on these rims (as the valve sensors would be absent)
If the latter is true then we would strongly recommend against using RFT tyres as if a puncture occurs you would be unaware that it had happened (without the valve sensors you would receive no notification of pressure loss) Continuing to drive on the tyres beyond their designed capability (50 miles @ 50 mph) would eventually result in tyre failure" Kind regards BSUK TECH DEPT
I know you wouldnt want to run RFTs but I just wanted the official answer! And Ive got 4 very good RFTs to use up!
If the latter is true then we would strongly recommend against using RFT tyres as if a puncture occurs you would be unaware that it had happened (without the valve sensors you would receive no notification of pressure loss) Continuing to drive on the tyres beyond their designed capability (50 miles @ 50 mph) would eventually result in tyre failure" Kind regards BSUK TECH DEPT
I know you wouldnt want to run RFTs but I just wanted the official answer! And Ive got 4 very good RFTs to use up!