Pit Stops

The 2024 Bank of America ROVAL 400 NASCAR CUP Series pit stop performance data highlights the fastest pit stops, team efficiency, and crew performance from Charlotte Motor Speedway Road Course.

Bank of America ROVAL 400

Sunday, October 13th, 2024

Charlotte Motor Speedway Road Course, Concord, NC

  • 15 Chevrolet
  • 15 Ford
  • 8 Toyota

  • Wednesday, October 9th, 2024
  • NASCAR Wire Service - Reid Spencer
The Charlotte Road Course has been a serendipitous track for Hendrick drivers

For Hendrick Motorsports drivers, the Charlotte Motor Speedway Road Course can be a place of good omens.

In 2020, when the 2.280-mile, 17-turn circuit hosted the sixth race in the NASCAR Cup Series Playoffs, Chase Elliott won that Round of 12 elimination race and went on to win the series championship.

A year later, in his first season with Hendrick Motorsports, Kyle Larson duplicated his teammate’s feat, winning at the Roval and claiming the title with a victory in the Championship 4 event at Phoenix Raceway.

Interestingly, all four Hendrick drivers—Elliott, Larson, William Byron and Alex Bowman—are above the current cut line entering Sunday’s Bank of America Roval 400 (2 p.m. ET on NBC, PRN and SiriusXM NASCAR Radio).

The four drivers, however, come to the newly configured road course with different agendas. Byron is the only driver to have clinched a spot in the Round of 8, a feat he accomplished on points after a third-place finish last Sunday at Talladega Superspeedway.

After matching his career-best finish (fourth) at Talladega, Larson can advance to the next round of the Playoffs by scoring 16 points on Sunday, no matter who wins the race.

Bowman is 26 points above the current cutoff and likely will try to score points in the first two stages to secure his spot in the Round of 8. Elliott is eighth in the standings, just 13 points ahead of Joey Logano in ninth, a position that may dictate a more aggressive approach to Sunday’s race.

Complicating the issue are dramatic changes to the layout. Instead of approaching the main grandstand, Turn 6 now directs the drivers toward the condominiums in Turn 1 on the NASCAR oval. It’s an uphill corner where drivers won’t be able to see the apex before they reach the braking zone.

The new Turn 7, which leads up to the banking of the oval, is a tight hairpin that Christopher Bell (second in the Playoff standings and the 2022 Roval winner) says has the potential to be a new “calamity corner.”

Turn 16, in the frontstretch chicane, has been tightened to a sharper radius.

“I kind of look at it like it’s a new race track, truthfully,” Elliott said. “That section of the track (Turns 6 and 7) is going to change the entire flow of the lap there, so I’ve been kind of approaching it as a new track with my preparation. I’ve spent some time in the simulator, just trying to really memorize the track and where the little bumps are.

“Typically, those track scans are pretty good. I think that’s probably one of the best things about the simulator, that a driver can go and get familiar with the track layout—surface content, roughness, so on and so forth. It’s really about all I feel like I can do until we get some time on track.”

Drivers will get their first non-virtual track time on Saturday during practice, with each competitor getting 40 minutes on the new layout before qualifying.

“I was able to turn some laps on the Roval in the simulator last week,” Larson said. “The changes to the track create another passing zone (Turn 7) but could also create chaos if drivers make late moves there.

“With our finish at Talladega, we’re in a much better points position entering this race than years past, but we still have to execute and put together a solid race this weekend.”

Needing more than just a solid race are the remaining Ford drivers in the field—Logano, Austin Cindric, Chase Briscoe and Ryan Blaney. Of the four, only Blaney, the reigning series champion, remains above the current cutoff at +25.

Briscoe and Cindric are 29 and 32 points below the line, respectively, likely needing a victory on Sunday to advance.

“We kind of have to go in here with the mind-set of winning the race, which simplifies things in a lot of ways,” Cindric said. “It certainly simplifies strategy thoughts and thoughts in preparation for the race.

“It’s not the situation you want to be in, but it’s something we’re certainly prepared to go after and fight for.”

  • Bank of America ROVAL 400
  • Busch Pole Award Pole Winner: Shane Van Gisbergen
  • Age: 35
  • Team : No 13 - WeatherTech Chevrolet
  • Owner: Matthew Kaulig
  • Crew Chief: Travis Mack
  • Shane Van Gisbergen won the Pole Award for the Bank of America ROVAL 400 with a lap of 82704 seconds, 99246 mph
  • This is his first pole in 12 NASCAR Cup Series races
  • This is his first pole and third top-10 start in 2024
  • This is his first pole in one races at Charlotte Motor Speedway Road Course
  • Tyler Reddick (second) posted his 19th top-10 start of 2024 and his third in five races at Charlotte Motor Speedway Road Course
  • AJ Allmendinger (third) posted his fourth top-10 start at Charlotte Motor Speedway Road Course It is his third in 15 races this season
  • Carson Hocevar (20th) was the fastest qualifying rookie

  • Sunday, October 13th, 2024
  • NASCAR Wire Service - Reid Spencer
Kyle Larson dominates at Charlotte Roval, as Tyler Reddick stays alive in Playoffs

Sunday’s Bank of America Roval 400 was as much about Tyler Reddick’s heroic drive into the Round of 8 in the NASCAR Cup Series Playoffs as it was about Kyle Larson’s continued domination of elimination races.

As Larson cruised to his second Playoff victory this season—and his second in an elimination race—Reddick charged forward from 26th after a Lap 84 restart and clawed his way to 11th—good enough to knock two-time series champion Joey Logano out of the Playoffs by eight points.

Logano’s exit was temporary, however. In post-race inspection, Alex Bowman’s Chevrolet failed NASCAR’s weight requirement and was disqualified, knocking the driver of the No. 48 Chevrolet below the elimination line and restoring Logano to the Round of 8.

Mirroring his rout in the final Round of16 event at Bristol Motor Speedway, Larson grabbed the lead for the restart of Stage 2 and stayed out front for 62 of the final 82 laps at the 2.28-mile, 17-turn Charlotte Motor Speedway Road Course.

The driver of the No. 5 Hendrick Motorsports Chevrolet crossed the finish line 1.511 seconds ahead of Christopher Bell, the only driver who could stay in the same zip code with the race winner. Third-place William Byron was 8.965 seconds behind at the finish.

With his sixth victory of the season, his second at the Roval and the 29th of his career, Larson led two other Hendrick teammates into the final eight—Byron, and fifth-place finisher Chase Elliott.

“Really, it’s the first time in my Playoff career I’ve not been close to the cut line, so it was good to kind of have a little bit stress-free of a weekend,” said Larson, whose previous win at the Roval came during his 2021 championship season. “I think the first time I’ve been here without crashing, maybe, besides the other time I won.

“It’s known that I don’t really use the sim (simulator) much, and I was in the sim this week. It really helped me get into a rhythm I think early on and helped us kind of fine-tune our car, too.”

Joining Bowman on the sidelines were Team Penske’s Austin Cindric (fourth on Sunday), Trackhouse Racing’s Daniel Suarez (31st) and Stewart-Haas Racin’gs Chase Briscoe (37th), leaving reigning series champion Ryan Blaney (10th) and Logano as the two Ford drivers left in the Playoff field.

If Larson’s dominating run stole the suspense from his victory, Reddick’s charge over the final 26-lap green-flag run provided nail-biting drama.

After pole winner Shane van Gisbergen (21 laps led) and Larson pitted from the top two spots in Stage 1, Reddick, the regular-season champion, stayed out in the lead to collect 10 stage points and an additional Playoff point on Lap 25.

A pit stop during the stage break mired Reddick in traffic for a Lap 30 restart, and then calamity struck. In the newly reconfigured Turn 7 hairpin, the new corner of chaos, Austin Dillon turned sideways in a melee that saw Reddick jump the curbing and smash into his 23XI Racing team owner Denny Hamlin.

Reddick’s car was severely damaged, and only a succession of pit stops throughout the remainder of the race—including a lengthy sojourn under caution to repair the left-rear toe link—made it competitive for the final run.

“Yeah, I thought I was going to flip, but I think I was behind the 19 (Martin Truex Jr.)—trying to work the move to the inside,” Reddick said of the wreck. “I got clear of him—I saw the 3 (Dillon) spun and everyone on the binders coming to a stop, and of course, me and my boss (Hamlin) get together. It was like I was going to do a front flip. This thing was absolutely destroyed.

“Huge props to everyone on this Monster Energy Toyota Camry. This thing couldn’t go within four seconds of what the pace was, and we just kept working on it. We were a lot better in Stage 3. This is how this place can be sometimes, but it is really nice to pull this off.”

It was crew chief Billy Scott’s call to bring Reddick to pit road for new tires under caution on Lap 82 that proved decisive. The fresh Goodyears were the ammunition Reddick needed to pass 15 cars during the final run and eclipse Logano’s point total by four.

But the drama became moot with Bowman’s disqualification.

“You just have to stay calm,” Reddick said. “You just have to stay focused. In those moments, it is so easy to lose control. Either way, I was going to drive the car as fast as I could. It just worked out for us that this thing was able to get back through the field and get us to the good side of the cut line.”

By the time the second stage ended, Larson and Bell had clinched spots in the Round of 8. Hamlin, who ran 14th on Sunday, also advanced. Bowman was nine points above the elimination line at the finish before the crushing disqualification and would have been the fourth Hendrick driver in the final eight.

At the checkered flag on Sunday, AJ Allmendinger was sixth, followed by Van Gisbergen, Logano, Bubba Wallace, Blaney and Reddick.

  • Drivers Entered: 38
  • Laps Scheduled: 109
  • Margin of Victory: 01.511 Seconds
  • Time of Race: 3 Hours 0 Minutes 3 Seconds
  • Average Speed: 82.817
  • Cautions: 5 for 13 laps
  • Lead Changes: 7
  • Green Flag Passes: 3,357 (35.0 passes per green flag lap)

  • Bank of America ROVAL 400
  • Race Winner: Kyle Larson
  • Age: 32
  • Team : No 5 - HendrickCarscom Chevrolet
  • Owner: Rick Hendrick
  • Crew Chief: Cliff Daniels
  • Kyle Larson won the Bank of America ROVAL 400, his 29th victory in 362 Cup Series races
  • This is his sixth victory and 16th top-10 finish in 2024
  • This is his second victory and second top-10 finish in six races at Charlotte Motor Speedway Road Course
  • Christopher Bell (second) posted his third top-10 finish in five races at Charlotte Motor Speedway Road Course It is his 20th top-10 finish in 2024
  • William Byron (third) posted his fourth top-10 finish in seven races at Charlotte Motor Speedway Road Course
  • Carson Hocevar (12th) was the highest finishing rookie
  • William Byron leads the point standings by 9 points over Kyle Larson
  • Alex Bowman's #48 vehicle was determined to be too light in post-race technical inspection, disqualifying the result and dropping Bowman to a 38th-place finish.
Cup Series pit stops at Daytona International Speedway
Daytona Beach, Florida - February 8, 2020 : Cup Series pit stops at Daytona International Speedway
Brian LawdermilkGetty Images

Pit Stop Summary Report

Summary of each driver's pit stop during the race. Detailed Report is below the Summary Report.

Average Driver and Crew Pit Stop Time
Bank of America ROVAL 400 at Charlotte Motor Speedway Road Course Pit Stop Summary
DRIVER ST FIN STATUS PIT STOPS AVG DRVR TIME DRVR RANK AVG CREW TIME CREW RANK AVG TTL TIME TTL RANK FST STOP SLW STOP
Kyle Larson 6 1 Running 3 26.599 20 9.532 1 36.130 1 35.904 36.328
Daniel Suarez 13 30 Running 2 26.492 15 9.710 2 36.201 2 36.194 36.208
Chris Buescher 29 17 Running 4 26.382 8 10.185 3 36.567 3 36.317 37.081
William Byron 10 3 Running 3 26.408 11 10.355 6 36.763 4 36.259 37.324
Ross Chastain 16 28 Running 4 26.644 22 10.243 5 36.888 5 36.803 37.030
Kyle Busch 11 13 Running 3 26.147 1 10.822 13 36.968 6 35.773 38.299
Christopher Bell 12 2 Running 3 26.397 9 10.655 9 37.052 7 36.320 38.298
Ty Gibbs 19 35 Engine 3 26.277 2 10.799 11 37.076 8 35.880 39.199
Alex Bowman 17 38 DQ Post-race 3 26.779 26 10.388 7 37.168 9 36.565 37.762
Austin Dillon 22 32 Running 4 26.720 24 10.535 8 37.255 10 36.902 37.430
Bubba Wallace 9 9 Running 3 26.366 7 10.911 15 37.277 11 35.906 39.403
Harrison Burton 26 20 Running 4 26.408 10 10.885 14 37.294 12 36.625 37.889
Ryan Preece 34 25 Running 5 27.143 33 10.197 4 37.340 13 37.037 37.810
Carson Hocevar 20 12 Running 3 26.828 28 10.811 12 37.639 14 36.234 39.530
Kaz Grala 31 27 Running 3 26.973 32 10.722 10 37.694 15 37.289 37.959
Josh Berry 36 22 Running 3 26.845 29 10.978 16 37.823 16 36.638 39.968
John Hunter Nemechek 35 34 Accident 2 26.537 17 11.345 20 37.882 17 37.364 38.399
Martin Truex Jr 30 21 Running 5 26.279 3 11.664 24 37.943 18 35.849 41.893
Justin Haley 33 26 Running 3 26.928 30 11.066 17 37.994 19 37.084 38.881
Daniel Hemric 27 24 Running 4 26.283 4 11.786 26 38.069 20 36.739 39.179
Austin Cindric 5 4 Running 3 26.499 16 11.645 22 38.144 21 37.447 39.152
AJ Allmendinger 3 6 Running 4 26.942 31 11.245 18 38.187 22 36.821 40.197
Ricky Stenhouse Jr 24 16 Running 4 26.619 21 11.653 23 38.272 23 37.293 40.235
Chase Elliott 7 5 Running 3 26.554 18 11.756 25 38.311 24 36.617 39.179
Todd Gilliland 15 18 Running 4 26.778 25 11.628 21 38.406 25 36.832 40.809
Brad Keselowski 8 23 Running 4 26.297 5 12.395 28 38.692 26 35.521 45.624
Erik Jones 37 33 Accident 2 26.687 23 12.045 27 38.732 27 37.585 39.879
Chase Briscoe 25 36 Accident 2 27.520 35 11.245 18 38.764 28 36.767 40.761
Joey Logano 4 8 Running 2 26.328 6 12.679 31 39.006 29 37.584 40.428
Shane van Gisbergen 1 7 Running 3 26.490 14 12.579 29 39.069 30 36.857 42.325
Denny Hamlin 18 14 Running 3 26.581 19 12.601 30 39.182 31 38.446 40.252
Tyler Reddick 2 11 Running 4 26.461 12 13.657 32 40.118 32 37.878 42.028
Ryan Blaney 14 10 Running 3 26.790 27 13.747 33 40.537 33 36.384 48.281
Noah Gragson 32 31 Running 6 27.615 36 13.841 34 41.456 34 37.487 54.366
Michael McDowell 21 15 Running 2 26.480 13 15.349 35 41.829 35 40.526 43.131
Zane Smith 23 19 Running 3 27.208 34 16.595 36 43.803 36 36.699 54.013
Josh Bilicki 38 29 Running 3 29.182 37 21.788 37 50.971 37 45.301 54.965

Pit Stop Detailed Report

Each 2- and 4-wheel pit stop during the race.

Bank of America ROVAL 400 at Charlotte Motor Speedway Road Course Pit Stop Detail
DRIVER LDR LAP DRV LAP DRV TIME CREW TIME TOT TIME TYPE
AJ Allmendinger 36 36 26.978 9.843 36.821 4-wheel change
AJ Allmendinger 81 81 26.855 10.210 37.065 4-wheel change
AJ Allmendinger 18 17 27.051 11.612 38.663 4-wheel change
AJ Allmendinger 70 70 26.884 13.313 40.197 4-wheel change
Brad Keselowski 47 46 26.112 9.409 35.521 4-wheel change
Brad Keselowski 20 19 26.366 9.776 36.142 4-wheel change
Brad Keselowski 93 92 26.237 11.244 37.481 4-wheel change
Brad Keselowski 76 76 26.474 19.150 45.624 4-wheel change
Denny Hamlin 20 19 26.735 11.711 38.446 4-wheel change
Denny Hamlin 36 36 26.504 12.345 38.849 4-wheel change
Denny Hamlin 75 74 26.505 13.747 40.252 4-wheel change
Joey Logano 26 26 26.274 11.310 37.584 4-wheel change
Joey Logano 71 70 26.381 14.047 40.428 4-wheel change
Kyle Busch 19 18 26.130 9.643 35.773 4-wheel change
Kyle Busch 36 36 26.223 10.610 36.833 4-wheel change
Kyle Busch 71 70 26.087 12.212 38.299 4-wheel change
Martin Truex Jr 46 45 26.208 9.641 35.849 4-wheel change
Martin Truex Jr 100 99 26.069 10.143 36.212 4-wheel change
Martin Truex Jr 20 19 26.289 9.977 36.266 4-wheel change
Martin Truex Jr 36 36 26.616 12.879 39.495 4-wheel change
Martin Truex Jr 74 73 26.211 15.682 41.893 4-wheel change
Michael McDowell 33 32 26.512 14.014 40.526 4-wheel change
Michael McDowell 70 69 26.448 16.683 43.131 4-wheel change
Austin Dillon 36 36 26.559 10.343 36.902 4-wheel change
Austin Dillon 47 46 26.427 10.877 37.304 4-wheel change
Austin Dillon 80 79 27.509 9.876 37.385 4-wheel change
Austin Dillon 17 16 26.386 11.044 37.430 4-wheel change
Ricky Stenhouse Jr 36 36 26.616 10.677 37.293 4-wheel change
Ricky Stenhouse Jr 21 20 26.625 10.677 37.302 4-wheel change
Ricky Stenhouse Jr 46 45 26.647 11.611 38.258 4-wheel change
Ricky Stenhouse Jr 74 73 26.588 13.647 40.235 4-wheel change
Kyle Larson 75 75 26.428 9.476 35.904 4-wheel change
Kyle Larson 20 20 26.683 9.476 36.159 4-wheel change
Kyle Larson 47 47 26.685 9.643 36.328 4-wheel change
Alex Bowman 73 72 26.855 9.710 36.565 4-wheel change
Alex Bowman 51 51 26.832 10.344 37.176 4-wheel change
Alex Bowman 21 20 26.651 11.111 37.762 4-wheel change
Ryan Blaney 76 75 26.509 9.875 36.384 4-wheel change
Ryan Blaney 51 51 27.336 9.610 36.946 4-wheel change
Ryan Blaney 26 26 26.526 21.755 48.281 4-wheel change
Chase Elliott 51 51 26.574 10.043 36.617 4-wheel change
Chase Elliott 26 26 26.590 12.546 39.136 4-wheel change
Chase Elliott 73 72 26.499 12.680 39.179 4-wheel change
Chris Buescher 19 18 26.407 9.910 36.317 4-wheel change
Chris Buescher 71 70 26.399 9.976 36.375 4-wheel change
Chris Buescher 81 81 26.350 10.143 36.493 4-wheel change
Chris Buescher 44 43 26.370 10.711 37.081 4-wheel change
Erik Jones 36 36 26.708 10.877 37.585 4-wheel change
Erik Jones 27 26 26.666 13.213 39.879 4-wheel change
Ryan Preece 58 57 26.793 10.244 37.037 4-wheel change
Ryan Preece 52 51 27.240 9.843 37.083 4-wheel change
Ryan Preece 14 13 27.021 10.077 37.098 4-wheel change
Ryan Preece 78 77 27.095 10.577 37.672 4-wheel change
Ryan Preece 27 26 27.567 10.243 37.810 4-wheel change
Daniel Suarez 22 21 26.284 9.910 36.194 4-wheel change
Daniel Suarez 51 51 26.699 9.509 36.208 4-wheel change
Ross Chastain 47 46 26.660 10.143 36.803 4-wheel change
Ross Chastain 96 95 26.688 10.143 36.831 4-wheel change
Ross Chastain 36 36 26.609 10.277 36.886 4-wheel change
Ross Chastain 19 18 26.620 10.410 37.030 4-wheel change
Bubba Wallace 36 36 26.163 9.743 35.906 4-wheel change
Bubba Wallace 20 19 26.378 10.143 36.521 4-wheel change
Bubba Wallace 72 71 26.557 12.846 39.403 4-wheel change
Daniel Hemric 21 20 26.262 10.477 36.739 4-wheel change
Daniel Hemric 47 46 26.180 11.043 37.223 4-wheel change
Daniel Hemric 36 36 26.224 12.912 39.136 4-wheel change
Daniel Hemric 77 76 26.466 12.713 39.179 4-wheel change
William Byron 20 19 26.349 9.910 36.259 4-wheel change
William Byron 73 72 26.463 10.244 36.707 4-wheel change
William Byron 46 46 26.413 10.911 37.324 4-wheel change
Josh Bilicki 82 81 29.018 16.283 45.301 4-wheel change
Josh Bilicki 27 26 29.857 22.789 52.646 4-wheel change
Josh Bilicki 51 51 28.672 26.293 54.965 4-wheel change
Tyler Reddick 26 26 25.593 12.285 37.878 4-wheel change
Tyler Reddick 81 81 26.237 12.745 38.982 4-wheel change
Tyler Reddick 31 30 27.568 14.014 41.582 4-wheel change
Tyler Reddick 72 71 26.446 15.582 42.028 4-wheel change
Justin Haley 20 19 27.241 9.843 37.084 4-wheel change
Justin Haley 81 81 27.007 11.010 38.017 4-wheel change
Justin Haley 47 46 26.535 12.346 38.881 4-wheel change
John Hunter Nemechek 18 17 26.387 10.977 37.364 4-wheel change
John Hunter Nemechek 46 45 26.687 11.712 38.399 4-wheel change
Christopher Bell 47 47 26.377 9.943 36.320 4-wheel change
Christopher Bell 20 19 26.361 10.177 36.538 4-wheel change
Christopher Bell 75 75 26.453 11.845 38.298 4-wheel change
Kaz Grala 74 73 26.712 10.577 37.289 4-wheel change
Kaz Grala 51 51 26.857 10.978 37.835 4-wheel change
Kaz Grala 81 81 27.349 10.610 37.959 4-wheel change
Austin Cindric 36 36 26.670 10.777 37.447 4-wheel change
Austin Cindric 20 19 26.421 11.411 37.832 4-wheel change
Austin Cindric 71 70 26.406 12.746 39.152 4-wheel change
Chase Briscoe 20 19 26.390 10.377 36.767 4-wheel change
Chase Briscoe 35 34 28.649 12.112 40.761 4-wheel change
Harrison Burton 46 45 26.416 10.209 36.625 4-wheel change
Harrison Burton 21 20 26.743 10.377 37.120 4-wheel change
Harrison Burton 78 77 26.296 11.244 37.540 4-wheel change
Harrison Burton 36 36 26.178 11.711 37.889 4-wheel change
Noah Gragson 81 81 26.677 10.810 37.487 4-wheel change
Noah Gragson 72 71 27.120 10.878 37.998 4-wheel change
Noah Gragson 103 102 27.333 10.911 38.244 4-wheel change
Noah Gragson 21 20 26.932 11.645 38.577 4-wheel change
Noah Gragson 52 51 29.921 12.145 42.066 4-wheel change
Noah Gragson 93 92 27.707 26.659 54.366 4-wheel change
Zane Smith 21 20 26.923 9.776 36.699 4-wheel change
Zane Smith 76 75 27.049 13.647 40.696 4-wheel change
Zane Smith 46 45 27.652 26.361 54.013 4-wheel change
Josh Berry 51 51 26.361 10.277 36.638 4-wheel change
Josh Berry 80 79 26.752 10.110 36.862 4-wheel change
Josh Berry 36 36 27.422 12.546 39.968 4-wheel change
Ty Gibbs 36 36 26.204 9.676 35.880 4-wheel change
Ty Gibbs 47 46 26.274 9.876 36.150 4-wheel change
Ty Gibbs 26 26 26.353 12.846 39.199 4-wheel change
Todd Gilliland 21 20 26.488 10.344 36.832 4-wheel change
Todd Gilliland 26 26 26.768 11.211 37.979 4-wheel change
Todd Gilliland 36 36 27.394 10.610 38.004 4-wheel change
Todd Gilliland 74 73 26.461 14.348 40.809 4-wheel change
Carson Hocevar 21 20 26.825 9.409 36.234 4-wheel change
Carson Hocevar 45 44 27.076 10.076 37.152 4-wheel change
Carson Hocevar 73 72 26.583 12.947 39.530 4-wheel change
Shane van Gisbergen 47 47 26.346 10.511 36.857 4-wheel change
Shane van Gisbergen 21 21 26.448 11.578 38.026 4-wheel change
Shane van Gisbergen 81 81 26.677 15.648 42.325 4-wheel change