R. Mark Stiles

R. Mark Stiles

Contact: email author

From the Great Bridge section of Chesapeake, Virginia, R. Mark Stiles, the owner, news director & editor in chief of Catchfence,™ has been dedicated to auto racing news media coverage, journalism and reporting for almost 17-years. Stiles started in the industry in the fall of 1997 with two columns (Green Flag Black Flag and Breaking Loose) for AOL/Athlete Direct's NASCAR department (ADNASCAR). He later merged Green Flag Black Flag and became the news director with Ryan Seek's CatchFence in 1999. At the beginning of 2001, Stiles went full-time with Catchfence, served as an assistant to the now retired Voice of Daytona Int'l Speedway chief track announcer, Bill Bowser, and In 2005 he acquired full ownership of Catchfence.

Apr 14

Goodyear Racing 2015 Bristol Motor Speedway NASCAR (April) Tire Fast Facts

Filed under Sprint Cup Series, XFINITY Series

Goodyear Racing Logo
Goodyear Racing Logo

NASCAR Sprint Cup Series — Race No. 8 – Food City 500
NASCAR Xfinity Series — Race No. 7 – Drive to Stop Diabetes 300
Bristol Motor Speedway (0.533-mile oval) – Bristol, Tenn.
Fast Facts for April 17-19, 2015

Tire: Goodyear Eagle Speedway Radials

Set limits: Sprint Cup: 5 sets for practice/qualifying and 10 sets for the race;
Xfinity: 6 sets for the event

Tire Codes: Left-side — D-4416; Right-side — D-4526

Tire Circumference: Left-side — 87.64 in. (2,226 mm); Right-side — 88.43 (2,246 mm)

Minimum Recommended Inflation: Left Front — 20 psi; Left Rear — 18 psi;
Right Front — 41 psi; Right Rear — 38 psi

Notes: Teams in both the NASCAR Sprint Cup and Xfinity Series will run the same Goodyear tire codes at Bristol this week . . . this is the same combination of left- and right-side tires these teams ran at this track last August . . . Bristol is the only track at which NASCAR teams are scheduled to run either of these two tire codes . . . unlike on most NASCAR ovals one mile or less in length, on which teams generally do not run inner liners in their tires, teams are required to run liners in their right-side tires only at Bristol . . . air pressure in those inner liners should be 12-25 psi greater than that of the outer tire.

NASCAR K&N Series: Goodyear will also supply tires for NASCAR’s K&N East race at Bristol this week . . . the tire codes to be run are D-2269 on the left-side and D-2291 on the right-side . . . Goodyear will bring 270 tires per side for K&N teams . . . teams are allowed three sets each for the event.

Follow us on Twitter: @GoodyearRacing.

For more information:

Source: Goodyear Racing

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