Running with a stock spare?

[leevanf]

Pardon the ignorance guys, as i have no experience getting aftermarket wheels flat all my life.

I recently bit the bullet and bought TWS T66Fs in 17x8 +42.
Say I get a flat on a road trip, is it safe to replace any of the flats with the stock 17x7 rim and drive it? What damage or risks do i run doing so?

What am i exactly supposed to do in such situations?

Thanks

[JD001]

I have no spare.. just gloop! Space savers are pretty common, they are usually smaller than what is on the car, speed restrictions usually apply. The spare is used to get you to a tyre fitter..

[86MLR]

Ensure you put the spare on the front.

Different diameter wheels can/will/may screw your torsen diff.

Have a look at the tirerack website to find the diameters.

Google about using a spare with a limited slip diff.

As for goop, it can screw your tyre, plus useless if you hole your tyres sidewall.

As for space savers, fine if you are local, but, when you are 300km from home, on a Sunday arvo, a space saver is a pain in the arse.

I am a advocate for full sized spares when on the street.

[leevanf]

Originally Posted by 86MLR

Ensure you put the spare on the front.

Different diameter wheels can/will/may screw your torsen diff.

Have a look at the tirerack website to find the diameters.

Google about using a spare with a limited slip diff.

As for goop, it can screw your tyre, plus useless if you hole your tyres sidewall.

As for space savers, fine if you are local, but, when you are 300km from home, on a Sunday arvo, a space saver is a pain in the arse.

I am a advocate for full sized spares when on the street.

Thank you. Say im running 17x8 PS4s on all sides, and have a stock 17x7 oem wheel with primacy.

Then i bust a rear tire, so i should just swap the front to the rear, then replace the front with my 17x7 oem spare. Will i be safe in highway speeds up to 100kph?


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[86MLR]

Originally Posted by leevanf

Thank you. Say im running 17x8 PS4s on all sides, and have a stock 17x7 oem wheel with primacy.

Then i bust a rear tire, so i should just swap the front to the rear, then replace the front with my 17x7 oem spare. Will i be safe in highway speeds up to 100kph?


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What are your tyre sizes mate?

???/?? 18

215/45 17

[86MLR]

215/45 17 primacy hp = 24.7" diameter

[86MLR]

Apparently, google says, any more than a 3% difference is bad.

[leevanf]

Originally Posted by 86MLR

Apparently, google says, any more than a 3% difference is bad.

It will be the same diameter.

My 17x8 will be on 215/45/17 or 225/45/17 albeit much grippier tires.

What i worry about is thaat will running one 17 x 7 (OEM grip) and 17 x 8 (Grippy tires) in front be dangerous for highway trips back to any nearby tire repair shop?

[soundman98]

Not unless you're going sideways the whole way

[norcalpb]

Originally Posted by leevanf

It will be the same diameter.

My 17x8 will be on 215/45/17 or 225/45/17 albeit much grippier tires.

What i worry about is thaat will running one 17 x 7 (OEM grip) and 17 x 8 (Grippy tires) in front be dangerous for highway trips back to any nearby tire repair shop?

Not at all, just stay below 55mph or whatever that is in km/h.

I’ve thought about using the goop as an alternative to the spare tire but I hear it makes an insane mess that you’ll have to deal with once you get to the tire shop.

I think spare tires are good for only 50 miles. I put 25 miles on mine so I assume I have 25 safe miles left. However this is the rule not the exception. I had a buddy blow a tire out at a track day and he drove nearly 200 miles home without a problem.

[leevanf]

Originally Posted by norcalpb

Not at all, just stay below 55mph or whatever that is in km/h.



I’ve thought about using the goop as an alternative to the spare tire but I hear it makes an insane mess that you’ll have to deal with once you get to the tire shop.



I think spare tires are good for only 50 miles. I put 25 miles on mine so I assume I have 25 safe miles left. However this is the rule not the exception. I had a buddy blow a tire out at a track day and he drove nearly 200 miles home without a problem.

Thanks, im not sure about the range, but for the brz, my spare is a full size oem. That should mean i can use it above 50 miles right?


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[Mr.ac]

Read your manual regarding flat tires. If you ever have a flat tire on the rear you'll need to put the front wheel on the rear and the spare on the front.

Oh and holy flying cows Batman!
You ask about using a spare tire? LoL.

[leevanf]

Originally Posted by Mr.ac

Read your manual regarding flat tires. If you ever have a flat tire on the rear you'll need to put the front wheel on the rear and the spare on the front.

Oh and holy flying cows Batman!
You ask about using a spare tire? LoL.

Thanks i got that part, my question was more about will there be a problem running on the highway, with a 17x8 and 17x7 (oem) in front?


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[Mr.ac]

Originally Posted by leevanf

Thanks i got that part, my question was more about will there be a problem running on the highway, with a 17x8 and 17x7 (oem) in front?


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No problem. Been that way for the last 70+ years.
Space saver spares are always thinner than the wider oem wheels. Like I said it's been that way for the last 70+ years across the whole automotive life