Thread: Tire size and speedometer change
View Single Post
  #2 (permalink)  
Old 02-20-2007, 12:35 PM
The Phoenix's Avatar
The Phoenix The Phoenix is offline
Moderator
  
My Garage
N/A
My Details
Last Online: Yesterday 01:23 PM
Join Date: Oct 2006
Location: TundraSolutions.com
Posts: 2,502
Rep Power: 6
The Phoenix will become famous soon enough.
The Phoenix's Photo Albums
Default Re: Tire size and speedometer change
Stock Size P265/65R17
Sidewall: 6.8in
Radius: 15.3in
Diameter: 30.6in
Circumfrence: 96.0in
Revs/mi: 660.0

New Tire Size P265/70R17
Sidewall: 7.3in
Radius: 15.8in
Diameter: 31.6
Circumfrence: 99.3in
Revs/mi: 638.0

Speedometer reading with a non-stock tire is 3.4% too slow.
When your speedometer reads 60mph, you are actually traveling 62.0mph
Reply With Quote