Within moments of hitting the track on Saturday at Iowa Speedway, Denny Hamlin realized he had a problem and it was one that crew chief Chris Gayle recognized as one that could potentially end their race before it began.<br>They didn’t have adequate or consistent brake pressure.<br>Their Joe Gibbs Racing teammate, Chase Briscoe, also started suffering from similar problems and crew chief James ...<a class='more' href='https://www.motorsport.com/nascar-cup/news/what-was-the-deal-with-denny-hamlin-and-chase-briscoes-iowa-brakes/10845419/?utm_source=RSS&utm_medium=referral&utm_campaign=RSS-ALL&utm_term=News&utm_content=www'>Keep reading</a>