Speedometer accuracy with different wheel size?

		Xoutpost.com > BMW SAV Forums > X5 (E70) Forum
Speedometer accuracy with different wheel size?

Xoutpost server transfer and maintenance is occurring....

Xoutpost is currently undergoing a planned server migration.... stay tuned for new developments.... sincerely, the management

LinkBack

Thread Tools

Display Modes

02-02-2012, 12:48 PM

Cavman

Member

Join Date: Sep 2006

Location: Kansas City

Posts: 37

Thank you all for the quick replies

Thank you guys. Great info. Very informative.

Seems like a move from 19" to 20" is about a 0.7% increase in revs per mile (19" OEM tires are 716 revs/mile and 20" OEM tires are 721 revs/mile).

Therefore, if I am doing the math correctly, with the 20" tires and the speedometer reading 65mph, I will actually be traveling 65.455mph.

This doesn't take into consideration any "padding" that BMW has apparently added to our speedometer.

Thanks again.

Bookmarks

« Previous Thread | Next Thread »

Posting Rules
You may not post new threads You may not post replies You may not post attachments You may not edit your posts BB code is On Smilies are On [IMG] code is On HTML code is Off Trackbacks are On Pingbacks are On Refbacks are On Forum Rules

Contact Us - Xoutpost - Sponsors - Archive - Top

All times are GMT -4. The time now is 08:07 PM.

© 2017 Xoutpost.com. All rights reserved. Xoutpost.com is a private enthusiast site not associated with BMW AG.
The BMW name, marks, M stripe logo, and Roundel logo as well as X3, X5 and X6 designations used in the pages of this Web Site are the property of BMW AG.
This web site is not sponsored or affiliated in any way with BMW AG or any of its subsidiaries.