Space Saver Spare option/Full-size spare

Violator · 04-12-2018, 07:46 PM

Local pick-up...”willing to ship”?

BimmerTy · 01-31-2019, 10:54 AM

My F15 came with the 19" 467M wheels and the space saver spare. Since then, I've put 21" wheels on. Will the current space saver space work OK in the event I need to use it or do I need to get the F85 spare? I'm not sure if it's the same circumference and if it would cause drivetrain issues. 19" circumference: 2317.2mm, 21" circumference: 2302.5mm. I believe this is within the tolerance, however, I haven't been able to get a clear answer on this.

BimmerTy · 01-31-2019, 11:16 AM

Quote:

Originally Posted by BimmerTy

My F15 came with the 19" 467M wheels and the space saver spare. Since then, I've put 21" wheels on. Will the current space saver space work OK in the event I need to use it or do I need to get the F85 spare? I'm not sure if it's the same circumference and if it would cause drivetrain issues. 19" circumference: 2317.2mm, 21" circumference: 2302.5mm. I believe this is within the tolerance, however, I haven't been able to get a clear answer on this.

UPDATE
Just answered my question. Difference in rolling diameter:
Spare is 29in
285/35-21 28.9in -0.4%
325/30-21 28.7in -1.1%

brevets10000 · 01-31-2019, 12:04 PM

Quote:

Originally Posted by BimmerTy

My F15 came with the 19" 467M wheels and the space saver spare. Since then, I've put 21" wheels on. Will the current space saver space work OK in the event I need to use it or do I need to get the F85 spare? I'm not sure if it's the same circumference and if it would cause drivetrain issues. 19" circumference: 2317.2mm, 21" circumference: 2302.5mm. I believe this is within the tolerance, however, I haven't been able to get a clear answer on this.

use this tool - it will give you differences in terms of inches and %

https://tiresize.com/comparison/

04-12-2018, 07:46 PM	#45
Violator Living the dream 4588 Rep 2,194 Posts Drives: X5 w/MPPK, MPE & RC GTS Black Join Date: Dec 2014 Location: The Lone Star State iTrader: (2)	Local pick-up...”willing to ship”?
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01-31-2019, 10:54 AM	#46
BimmerTy ///M 193 Rep 272 Posts Drives: 2015 F15 X5 50i M Sport Join Date: Sep 2018 Location: RVA iTrader: (0) Garage List 2015 BMW X5 xDrive50i [0.00]	My F15 came with the 19" 467M wheels and the space saver spare. Since then, I've put 21" wheels on. Will the current space saver space work OK in the event I need to use it or do I need to get the F85 spare? I'm not sure if it's the same circumference and if it would cause drivetrain issues. 19" circumference: 2317.2mm, 21" circumference: 2302.5mm. I believe this is within the tolerance, however, I haven't been able to get a clear answer on this. __________________ 2015 F15 X5 xDrive50i - M Sport - Space Grey Metallic - 21" 612M - Accelera Iota ST68's - Black Dakota - Leather Dash - Poplar Wood - Ceramic - Shawdowline - Anthracite - Adaptive M - Full LED - Executive - DA+ - Surround - HUD - Enhanced BT - Soft Close - B&O - ACC Stop & Go - Multi Contour - 4 Zone Climate - Comfort Seats - Cold Weather - Muffler Delete - Akrapovic Tips - F85 Grille - 35% Tint - BMW All Weather Mats -- Missing DHP, NV, Active Steering, Rear Entertainment, & Cooled Seats Last edited by BimmerTy; 01-31-2019 at 11:02 AM..
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Space Saver Spare option/Full-size spare