NASCAR Cup
NASCAR Cup
17 May
-
17 May
Event finished
20 May
-
20 May
Event finished
23 May
-
24 May
Event finished
27 May
-
28 May
Event finished
31 May
-
31 May
Event finished
07 Jun
-
07 Jun
Event finished
10 Jun
-
10 Jun
Event finished
14 Jun
-
14 Jun
Event finished
21 Jun
-
21 Jun
Event finished
27 Jun
-
27 Jun
Event finished
28 Jun
-
28 Jun
Event finished
05 Jul
-
05 Jul
Event finished
12 Jul
-
12 Jul
Event finished
15 Jul
-
15 Jul
Next event in
1 day
R
02 Aug
-
02 Aug
Next event in
19 days
R
Michigan
08 Aug
-
09 Aug
Next event in
25 days
R
Daytona II
16 Aug
-
16 Aug
Next event in
33 days
R
22 Aug
-
23 Aug
Next event in
39 days
R
Daytona III
29 Aug
-
29 Aug
Next event in
46 days
R
Darlington III
06 Sep
-
06 Sep
Next event in
54 days
R
Richmond II
10 Sep
-
12 Sep
Next event in
58 days
R
Bristol II
19 Sep
-
19 Sep
Next event in
67 days
R
Las Vegas II
25 Sep
-
27 Sep
Next event in
73 days
R
Talladega II
02 Oct
-
04 Oct
Next event in
80 days
R
Charlotte III
09 Oct
-
11 Oct
Next event in
87 days
R
Kansas II
18 Oct
-
18 Oct
Next event in
96 days
R
Texas II
25 Oct
-
25 Oct
Next event in
103 days
R
Martinsville II
30 Oct
-
01 Nov
Next event in
108 days
R
Phoenix II
06 Nov
-
08 Nov
Next event in
115 days

NASCAR shifts to center-locking wheels for 2021

shares
comments
NASCAR shifts to center-locking wheels for 2021
By:
Mar 2, 2020, 9:40 PM

NASCAR is making a big change for 2021 along with the introduction of the Nex Gen race car: Center-locking wheels with a single lug nut.

NASCAR will also move from a 15-inch steel to 18-inch aluminum rims.

"One of our main goals with the Next Gen car is to provide a vehicle that better replicates what our OEM partners sell in the showroom – both in looks and relevant technology. Moving to an 18” forged aluminum wheel helps do just that," said NASCAR Senior Vice President of Racing Innovation John Probst.

"Once the decision was made to go that direction, we tested different lug nut options. With the loads on the larger wheels, we had to make sure that the wheel would remain securely fastened the car. The single lug, center lock design was the best way to accomplish this."

Read Also:

However, this will not fundamentally change how pit stops look moving forward but will result in faster stops.

"The choreography of a pit stop won’t change. You’ll still have the same over-the-wall crew members you have today, and rules related to when they can enter the pit box are still in effect," explained Probst.

"It will still be important for the tire changers to be quick off the wall to get to the far side of the car. Hand-eye coordination remains extremely important, you’re still trying to get the lug and tire on and off the car faster than 39 other teams. The overall way a pit stop looks will remain the same.

"In terms of timing, the torque is higher on the single lug, which means they have to leave the gun on longer. In our testing, we’ve found that it takes approximately half a second to properly tighten this new lug. Today, a good tire changer can remove five lugs in about .8 seconds. So, while pit stops may be a touch quicker next year, it won’t be a significant difference."

Read Also:

Next article
Ryan Blaney looking to change his end-of-race luck

Previous article

Ryan Blaney looking to change his end-of-race luck

Next article

Following Fontana, Toyota drivers have a need for (more) speed

Following Fontana, Toyota drivers have a need for (more) speed
Load comments

About this article

Series NASCAR Cup
Author Nick DeGroot