Is using a donut as a spare only for size? Can I do this?

deletedelete · 02-18-2010, 08:04 AM

Im still deciding what to do about a spare. Why cant I buy a cheap $50 rim and cheap tire from tirerack and have them mount and balance it. Plus buy a scissor jack and lug wrench.

Thats much cheaper then the $250-400 spare tire kits available. Is the only reason for a donut, the weight and size? How small of a rim could I use?

sam2428 · 02-18-2010, 08:28 AM

I'm not sure about tire size, but i know a lot of people just get a tire repair kit from walmart or something. Have you considered that instead?

That's probably a lot cheaper...but its not like having the piece of mind of having a nice full sized tire i guess

deletedelete · 02-18-2010, 08:34 AM

Quote:

Originally Posted by sam2428

I'm not sure about tire size, but i know a lot of people just get a tire repair kit from walmart or something. Have you considered that instead?

That's probably a lot cheaper...but its not like having the piece of mind of having a nice full sized tire i guess

Yeah I have one. But for long trips into the mountains you need a spare. There is the tischer kit, the bavauto kit but they are both $300 or more. Im trying to make something cheap.

Spydeputy · 02-18-2010, 09:05 AM

With your "xi", diameter does matter. if it is to small your x drive thinks that wheel is spinning (loss of traction) because it is turning faster than the other 3 wheels. same thing goes for ruining 1 tire, and replacing it w/ a new one. if the other 3 wheels are say at 50% wear, you might have to replace all 4 tires.

i bought the E60 spare kit. diameter is good, and same bolt pattern as my E90. yes i know, $275 f/ Tisher.

I see your Avatar has changed a bit!

mike-y · 02-18-2010, 10:13 AM

if you carefully select your tire size, you can build your own donut spare for your car, just like you suggested for cheap. you just have to make sure the overall tire diameter is the same (or very close to) your current tire setup.

MassBimmer · 02-18-2010, 10:19 AM

Or there is the new Tyre Guardian solution that EAS sells...

samchoi604 · 02-18-2010, 10:21 AM

get like a 17x7.5 rim with 205/50/17 tire.

02-18-2010, 08:04 AM	#1
deletedelete Major General 361 Rep 5,873 Posts Drives: m Join Date: Nov 2008 Location: usa iTrader: (14) Garage List 2013 e92 M3 [0.00] 2011 e93 M3 (sold) [0.00] 2009 335xi (sold) [0.00]	Is using a donut as a spare only for size? Can I do this? Im still deciding what to do about a spare. Why cant I buy a cheap $50 rim and cheap tire from tirerack and have them mount and balance it. Plus buy a scissor jack and lug wrench. Thats much cheaper then the $250-400 spare tire kits available. Is the only reason for a donut, the weight and size? How small of a rim could I use? __________________ ---> Click For xi/xDrive Suspension Compatibility List <---
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02-18-2010, 08:28 AM	#2
sam2428 Second Lieutenant 22 Rep 247 Posts Drives: 2008 335i Coupe - Alpine White Join Date: Feb 2010 Location: Houston, TX iTrader: (0)	I'm not sure about tire size, but i know a lot of people just get a tire repair kit from walmart or something. Have you considered that instead? That's probably a lot cheaper...but its not like having the piece of mind of having a nice full sized tire i guess
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02-18-2010, 09:05 AM	#4
Spydeputy Brigadier General 205 Rep 3,523 Posts Drives: 2015 F23 M235i/2008,E90,335xi Join Date: Aug 2008 Location: The County, Maryland iTrader: (19) Garage List 2017 X5 M Sport Pac ... [0.00] 2015 M235i, F23 [0.00]	size does matter lol With your "xi", diameter does matter. if it is to small your x drive thinks that wheel is spinning (loss of traction) because it is turning faster than the other 3 wheels. same thing goes for ruining 1 tire, and replacing it w/ a new one. if the other 3 wheels are say at 50% wear, you might have to replace all 4 tires. i bought the E60 spare kit. diameter is good, and same bolt pattern as my E90. yes i know, $275 f/ Tisher. I see your Avatar has changed a bit! Last edited by Spydeputy; 02-18-2010 at 09:28 AM..
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02-18-2010, 10:13 AM	#5
mike-y just another bmw douche bag 195 Rep 3,640 Posts Drives: 1.9L of fury Join Date: Nov 2008 Location: Los Angeles, CA iTrader: (4)	if you carefully select your tire size, you can build your own donut spare for your car, just like you suggested for cheap. you just have to make sure the overall tire diameter is the same (or very close to) your current tire setup.
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02-18-2010, 10:19 AM	#6
MassBimmer Major General 306 Rep 7,433 Posts Drives: 2023 i4 M50 Join Date: May 2009 Location: MA iTrader: (6) Garage List 2009 BMW [9.24]	Or there is the new Tyre Guardian solution that EAS sells...
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02-18-2010, 10:21 AM	#7
samchoi604 Colonel 60 Rep 2,334 Posts Drives: black on black Join Date: Mar 2009 Location: Burnaby, BC iTrader: (3)	get like a 17x7.5 rim with 205/50/17 tire.
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