![](https://www.ibj.com/wp-content/uploads/2023/05/MJS-20230528_INDY500-GALLERY-0025-300x214.jpg)
IndyCar introduces stronger retaining nut to keep wheels attached during wrecks
Following a near miss between an errant wheel and grandstand fans at the Indy 500 in May, chassis manufacturer Dallara has designed a retaining nut that is more than 60% stronger than the previous design.