Ask Honest John

Most recently answered runflat tyres questions
I have a BMW 335d GT 2017 plate, which came out of the factory with run flat tyres fitted. If I wanted to fit non-run flat tyres onto the car would this be allowed and would it have any effect on my insurance...
Can a Pirelli run-flat tyre with a nail in the tread be repaired?
My wife hit a rock in the dark and totally destroyed two tyres. I was going to switch to all-season tyres on replacement anyway, so this might be a good time. The car is a Lexus UX 250H TAKUMI, tyre size...
I have a 2015 BMW 1 Series that needs all four tyres replacing. I'm unable to find a particular make/model on the internet that stands out. Can you help? Currently, I have Bridgestone Potenza that seem...
My run-flat tyre has a slow puncture caused by a nail in the centre tread of the tyre. Can the run-flat tyre be repaired?
Mercedes tells me I should not replace my factory fitted run-flat tyres with ordinary summer tyres because the cars suspension has been set up for run-flats. The run-flats are small profile, resulting...
I would like to purchase some run-flat all-season tyres in size 225/45 R18. Do they exist?
My 2017 BMW M240i still has its winter tyres on, but with lockdown easing I ought to get them changed. I'm not sure what summer tyres to choose - however - the winter tyres definitely make the ride a bit...
I check my tyre pressures each week and have discovered a very slow puncture on one of my BMW 320i front tyres. They are BMW-approved run flats. I know run flats are not meant to be repaired and I understand...
I'd like to fit run-flat tyres to Mitsubishi ASX. The standard tyres size is 225/55/18 but run-flats don't come in that size. My local tyre dealer recommends 245/45/18 which are available as run-flats....
 

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