The season-opening Daytona 500 had pit stops, of course, but most were done under green-flag conditions and without a full field of cars on pit road at the same time.<br>Sunday’s race in Fontana, Calif., couldn’t have been more different.<br>With the track’s old and abrasive surface and a record-tying 12 cautions, Cup series’ pit crews got tested to the max with repeated full-field ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/pit-crews-importance-fontana-cup-race/8581138/?utm_source=RSS&utm_medium=referral&utm_campaign=R SS-NASCAR&utm_term=News&utm_content=www'>Keep reading</a>

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