Do tires deteriorate if not mounted? Bridgestones or Michelins?

mrh335 · 06-15-2008, 02:46 PM

I am looking to buy some "like new" tires for my 335i since I recently hit a pot hole and have a bubble in my front passenger tire.

I know that I have to now replace both fronts since there is ~9/32 of tread left, but am wondering if I should buy four new tires and replace all of them with the Michelin Pilot Sport PS2 ZP run flats, just swap the front two off for now with the Michelins and leave the rear Bridgestones in place until I wear them out and then put on the Michelins or what.

If I do just put the Michelins on the front now and keep the Bridgestones on the rear for the time being, is there any harm?

If I store the Michelins in my basement unmounted for the next year until I put them on in place of my Bridgestones, will they break down, rot, or have any bad things happen to them just for sitting?

Is there a big motivation to just put all four Michelins on and sell my three good tires? I have heard the Michelins are better, but haven't searched through to see why they are better than the Bridgestones.

Please provide some insight.

Chowbow · 06-15-2008, 04:00 PM

Shelf life does make a difference. If it's a few months I wouldn't worry about it... But I probably wouldn't store anything for close to a year. I'd rather just purchase them at a later time. You may get better shelf life out of the sun in the basement, but I would still just purchase as needed.

E90330iS · 06-15-2008, 06:40 PM

The BMW Wheel and Tire brochure says you can store them in room temperature in black trash bags for a maximum for six years.

halB · 06-15-2008, 09:37 PM

Read this:

http://www.carbibles.com/tyre_bible.html

Chowbow · 06-16-2008, 01:03 PM

You COULD store them for six years, but they definitely deteriorate over time, and more so if in the sun or in constant temperature fluctuations. A few months is honestly the longest I would wait before putting them on a car. In fact, I only order my tires from places like Tire Rack that have really high stock rotation in order to get tires that have not sat in their warehouse for a very long time.

06-15-2008, 02:46 PM	#1
mrh335 Second Lieutenant 29 Rep 207 Posts Drives: 2011 M3 sedan, jet black Join Date: Oct 2006 Location: Bay Area iTrader: (0)	Do tires deteriorate if not mounted? Bridgestones or Michelins? I am looking to buy some "like new" tires for my 335i since I recently hit a pot hole and have a bubble in my front passenger tire. I know that I have to now replace both fronts since there is ~9/32 of tread left, but am wondering if I should buy four new tires and replace all of them with the Michelin Pilot Sport PS2 ZP run flats, just swap the front two off for now with the Michelins and leave the rear Bridgestones in place until I wear them out and then put on the Michelins or what. If I do just put the Michelins on the front now and keep the Bridgestones on the rear for the time being, is there any harm? If I store the Michelins in my basement unmounted for the next year until I put them on in place of my Bridgestones, will they break down, rot, or have any bad things happen to them just for sitting? Is there a big motivation to just put all four Michelins on and sell my three good tires? I have heard the Michelins are better, but haven't searched through to see why they are better than the Bridgestones. Please provide some insight. __________________ 2011 E90 M3 Jet Black/Black ZPP, ZCP, ZTP, ZCW, 6FL, PDC, shades, 6MT
	Appreciate 0 Tweet Quote

06-15-2008, 04:00 PM	#2
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	Shelf life does make a difference. If it's a few months I wouldn't worry about it... But I probably wouldn't store anything for close to a year. I'd rather just purchase them at a later time. You may get better shelf life out of the sun in the basement, but I would still just purchase as needed. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
	Appreciate 0 Quote

06-15-2008, 06:40 PM	#3
E90330iS Major General 143 Rep 6,333 Posts Drives: BMW M4 Join Date: Jan 2006 Location: Arcadia, California iTrader: (56) Garage List 2006 330i [0.00]	The BMW Wheel and Tire brochure says you can store them in room temperature in black trash bags for a maximum for six years. __________________ 2017 BMW M4 DCT Lease Transfer: https://f80.bimmerpost.com/forums/sh...8#post23736398
	Appreciate 0 Quote

06-15-2008, 09:37 PM	#4
halB Colonel 53 Rep 2,384 Posts Drives: W211 E350 4M MkV GTI 987.2 S Join Date: Jan 2007 Location: Just north of Toronto iTrader: (0)	Read this: http://www.carbibles.com/tyre_bible.html __________________ 07 E93 335i - Returned at lease end 09 W211 E350 4Matic Avant Garde - Blk/Blk, AMG pkg w/18". Sport Susp. F1 Asym. Debadged. 09 MkV GTI w/Leather & 18" Huffs. F1 Asym 10 987.2 S w/Leather sport seat, Sport Chrono, 19" Carrera S II wheels
	Appreciate 0 Quote

06-16-2008, 01:03 PM	#5
Chowbow pew pew 166 Rep 6,781 Posts Drives: 三三五i Join Date: Aug 2007 Location: CA iTrader: (6) Garage List 2015 BMW 328i wagon [0.00] 2007 BMW 335i sedan [10.00] 1997 BMW 328i track ... [10.00]	You COULD store them for six years, but they definitely deteriorate over time, and more so if in the sun or in constant temperature fluctuations. A few months is honestly the longest I would wait before putting them on a car. In fact, I only order my tires from places like Tire Rack that have really high stock rotation in order to get tires that have not sat in their warehouse for a very long time. __________________ CSL replicas are now CSL counterfeits. Jesus saves, like Valentine1.
	Appreciate 0 Quote