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I have been giving serious thought to the concept of a spare front tire and wheel (plus jack, breaker bar, torque wrench and 6 point socket) as a fallback to the present slime + air compressor for tire damage. A spare tire is especially relevant if you are driving where there is limited to no cell coverage (many parts of coastal CA north of Morro Bay fall into this category) and road hazards (pot holes) make a tire un-driveable. Here is the reason for the thread: the rotations/mile specification for Michelin Pilot Sport 4S tires in 245/35-ZR20 is 777. However, the rotations/mile spec for the PS4S in 305/30-ZR20 is 764. Is the difference going to be a hazard if worst case, one rear tire had to be removed and the 245/35-ZR20 spare was fitted in its place?
I doubt that such a small rpm difference would matter. But the bigger question is where you plan to carry a spare front tire?
Remove the rear seats? There is sufficient space behind the front seats to mount a roll cage in the GT3 & RS cars, so it would seem that removal of the rear seats could open up sufficient space for a spare tire and some luggage.
A front tire and wheel fit easily in the back, resting partially on the shelf and elevated above the rear seat backs (folded down), or on the seat backs (with at least the passenger seat moved forward all the way):
I worry about the same issues of getting a flat tire, including in areas with no cell coverage--and that includes lots of roads in the southwest US.
You could also consider the official collapsible spare, which fits in the frunk:
I have been giving serious thought to the concept of a spare front tire and wheel (plus jack, breaker bar, torque wrench and 6 point socket) as a fallback to the present slime + air compressor for tire damage. A spare tire is especially relevant if you are driving where there is limited to no cell coverage (many parts of coastal CA north of Morro Bay fall into this category) and road hazards (pot holes) make a tire un-driveable. Here is the reason for the thread: the rotations/mile specification for Michelin Pilot Sport 4S tires in 245/35-ZR20 is 777. However, the rotations/mile spec for the PS4S in 305/30-ZR20 is 764. Is the difference going to be a hazard if worst case, one rear tire had to be removed and the 245/35-ZR20 spare was fitted in its place?
Thanks in advance to all who post.
This might be a bit off topic from what you are asking. Throughout my entire life of driving, which is quite substantial over a 50 year period, I've never ever have a front tire gone flat on me. Typically it is the rear that gets the most punctures. The reason being, the front rolls over any debris, nails, or other objects and kicks it up, then the rear catches it. Portholes and road hazards are of course different when you don't see it coming.
This might be a bit off topic from what you are asking. Throughout my entire life of driving, which is quite substantial over a 50 year period, I've never ever have a front tire gone flat on me. Typically it is the rear that gets the most punctures. The reason being, the front rolls over any debris, nails, or other objects and kicks it up, then the rear catches it. Portholes and road hazards are of course different when you don't see it coming.
A spare tire hopefully would address both nail and road hazard damage.
05-27-2018, 06:11 PM
Question regarding a Spare Tire
