91er Posted April 5, 2015 at 06:31 PM Report Share Posted April 5, 2015 at 06:31 PM As a new Energi owner the spare tire issue is on my mind. Having never owned run-flat tires I do understand the general concept thereof and it looks to me like like even after losing all of the air most of them run about another 50 miles at about 50mph. So here's the question: wouldn't that type of tire be almost a no-brainer for this particular car? Furthermore, why wouldn't Ford add them as original equipment? My first thought was cost, though a quick search on Tirerack shows a few Michelin options at or below the cost of the OEM tires. Any thoughts? Maybe I'm missing something here. Quote Link to comment Share on other sites More sharing options...
Doug0716 Posted April 5, 2015 at 10:02 PM Report Share Posted April 5, 2015 at 10:02 PM The factory tires are low rolling resistance, not many manufacturers make LRR tires that are also runflats (Pirelli does, not sure about anybody else) and Ford probably (just guessing really) bases their tires off brand contracts before anything else. Quote Link to comment Share on other sites More sharing options...
91er Posted April 5, 2015 at 11:56 PM Author Report Share Posted April 5, 2015 at 11:56 PM Interesting and thanks. Yes, you're right - the field gets pretty narrow with that combination. The Pirelli Cinturato P7 Grand Touring shows as a fair all season tire and it's cheap - $130 shipped right now! Hopefully with the market demand growing from PHEV owners with no spares by the time I need tires there will be some more choices. Quote Link to comment Share on other sites More sharing options...
Doug0716 Posted April 6, 2015 at 12:53 AM Report Share Posted April 6, 2015 at 12:53 AM It appears that run-flats may have other limitations as well. It seems that they're more likely to get a flat or blow out (pot hole) than a standard tire so it may cost you more time and money in the long run.http://www.autonews.com/article/20130329/RETAIL05/130329837/tire-study:-replacement-rate-runs-higher-for-run-flats Quote Link to comment Share on other sites More sharing options...
pioneer11 Posted April 6, 2015 at 01:39 AM Report Share Posted April 6, 2015 at 01:39 AM Another drawback with run flats is that if you get a nail in the tread, tire shops will not plug them. You are out the cost of a new tire. I had a BMW 3 series with run flats that took nails in the tread twice. Of course the second nail was in the one that replaced the first tire. Quote Link to comment Share on other sites More sharing options...
Doug0716 Posted April 6, 2015 at 04:32 AM Report Share Posted April 6, 2015 at 04:32 AM (Related, not trying to hijack, if OP feels it's off topic I'll create a new post) Has anybody replaced their LRR tires w/ regular tires? If so how has it affected their miliage (keeping in mind that old tires will always do better than new tires regardless of LRR classification of either)?I've had to emergency brake once and I don't feel comfortable w/ the performace of the OEM tires. On road trips you ocassionally have to avoid animals (deer, usually) crossing the road suddenly and I'm not sure if the increased risk with LRR tires is worth the risk. Thoughts? Quote Link to comment Share on other sites More sharing options...
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