Elliott Sadler (166.420 mph) and JR Motorsports teammate Justin Allgaier (166.211 mph) were fastest in the first of two NASCAR Xfinity Series practices Friday afternoon at Indianapolis Motor Speedway.
Teams are dealing with several changes for this weekend, including:
- Taller rear spoiler and splitter package
- Aero ducts on the lower front bumper area
- 7/8-inch restrictor plate
There is one more Xfinity practice session scheduled for today from 3 to 3:55 p.m. on the NBC Sports app in preparation for Saturday’s Lilly Diabetes 250 race.
Click here for the full first practice session speed chart.