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Yup..a run flat tire question

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Old 05-16-18, 11:11 AM
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RCFun
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Default Yup..a run flat tire question

I've had my LC for a month, and got my first nail last Saturday. I was 1/4" away from the dreaded "non-patchable" sidewall, so I was lucky. Is it stupid to carry your own set of spares in the truck (a front and rear)? I got through a few years of my RC F without a puncture, but it had a repair kit. I'm worried about being far away from a dealer, or not being able to repair a puncture, or it being a Sunday/night/holiday. Does anyone do this?
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Old 05-16-18, 11:14 AM
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4TehNguyen
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im not seeing how a spare tire can even fit in the already tiny trunk
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Old 05-16-18, 11:40 AM
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Lexus roadside assistance or Triple A should be able to fix it. Ive had runflats on a lot of my cars and have actually driven around on it for a day before I could get one repaired or replaced, shouldnt be a problem.

That being said I just had my tire patched up because of a nail also last week. It would have to be a special order if you want the OEM run flats because they were specifically made for the car.
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Old 05-16-18, 12:29 PM
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Originally Posted by walkedu View Post
Lexus roadside assistance or Triple A should be able to fix it. Ive had runflats on a lot of my cars and have actually driven around on it for a day before I could get one repaired or replaced, shouldnt be a problem.

That being said I just had my tire patched up because of a nail also last week. It would have to be a special order if you want the OEM run flats because they were specifically made for the car.
Before I went to see if I could get it patched I called the dealership and they had 1 in stock for $304, which is better than tirerack that was listing them for $344. I was surprised. Also, There are cheaper RF options or non-RF as spares (about $160).

And honestly, I haven't even looked to see if you could put 2 tires in the trunk!
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Old 05-16-18, 01:50 PM
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Originally Posted by RCFun View Post
Before I went to see if I could get it patched I called the dealership and they had 1 in stock for $304, which is better than tirerack that was listing them for $344. I was surprised. Also, There are cheaper RF options or non-RF as spares (about $160).

And honestly, I haven't even looked to see if you could put 2 tires in the trunk!
Thats actually not a bad price, was it for the rear or front? I dont think you will be able to fit 1 full sized tire in the rare let alone 2. Doesnt hurt to try though... I want to run 295's in the rear once my run flats are done. Believe it or not I still have problems with traction at lower gears when I do spirited driving.
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Old 05-16-18, 02:41 PM
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^^^^The LC50 has 8" & 9" wheels front to rear, that's , that's " narrower RCF and the GSF. Because of this you can not run 295s. See attachment with manufacturer's recommendations.

Don't know if you're on 20s or 21s, so showing them both.



Lou
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Old 05-16-18, 03:14 PM
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Should have clarified it would be on different rims. That being said 295's can be run on a 9.5 inch (just not optimal), had a few friends running them on their cl65's those were in 19's with a custom offset.
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Old 05-16-18, 05:08 PM
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I've also considered this after I blew out a front sidewall on a pothole earlier this month. Although the sidewall split, the tire never lost air, so I was able to get home. If you really want a spare in the trunk, a good tire/wheel shop can set you up with a "donut" (cheap skinny wheel and tire) that will work front or back, and will get you where you need to go. You don't need a full-size setup for emergency-only use. You will likely also need a set of lugs too if you go this route, since the OEM lugs probably won't fit on a donut rim.

A more costly alternative is to have a custom forged rim fabricated (and may as well build it to allow for OEM hardware). You can still save some cost be going narrower than the OEM size. A good wheel shop can do this with the proper offset and clearance to work front or back.

If you want to go stock, I believe the front wheel/tire setup will fit fine on the back of the LC. I haven't checked whether it actually fits inside the trunk though.

Remember - you'll also need to carry around a jack and lug (or socket) wrench too! Although my vehicle didn't come with these, there appears to be cutouts for these tools under the carpet area. Presumably, a Lexus dealer should be able to acquires these tools - to fit inside those cutouts.

Last edited by uchujin; 05-16-18 at 05:32 PM.
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Old 05-17-18, 05:36 AM
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Good point about a generic donut. I didn't even think about the rim, I was more of the mindset to just have the tire and then be able to have any tire shop mount it on the existing rim. The run flat will get me to the shop on a Sunday, it's more about what happens once I'm there. However, the idea of having the donut that could fit the front AND the rear temporarily might be a good compromise.
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Old 05-19-18, 03:22 PM
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Default Run Flat Run Hard

When I purchased an SC430 a number of years ago I had the dealer replace the standard run flats (HARDS) with a good set of tires. Never had a flat in over 6 years. Kept a cigarette lighter powered pump in the trunk
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Old 05-20-18, 04:09 AM
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I guess that modifying the original fitment is a compromise some are willing to accept. Only two 21'' options are OEM homologated for the LC. The Michelin fitted on our cars (for North America and Europe) and a Bridgestone for the Asian market. Michelin had to develop over forty variations of their Pilot Super Sport before receiving final approval from the Lexus Engineers. Homologations are already common for high end German cars and I for one will stick with the Michelin upon replacement, even if though I hold a management position for a competitive tire manufacturer.

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Old 05-20-18, 01:54 PM
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Wish I had the Michelin! Instead have Bridgestone (which I suspect is designed for the LC0 and am definitely not in Asia
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Old 05-20-18, 04:29 PM
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Originally Posted by ziggy1 View Post
Wish I had the Michelin! Instead have Bridgestone (which I suspect is designed for the LC0 and am definitely not in Asia
I should of specified that the Pilot Super Sports are homologated for the performance package.
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Old 05-21-18, 05:56 AM
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Originally Posted by LCInfrared View Post
I should of specified that the Pilot Super Sports are homologated for the performance package.
Thanks for the response, but I have the performance package (deployable spoiler, etc.) but still got stuck with the Bridgestones.
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Old 05-21-18, 08:33 AM
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Originally Posted by ziggy1 View Post
Thanks for the response, but I have the performance package (deployable spoiler, etc.) but still got stuck with the Bridgestones.
Then you should also have an homologated tire specifically tuned for the LC. The model should say S001 followed by the letter ''L'' as in Lexus. Not too shabby as this was also chosen to be OEM fitment on the LFA.
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