The Pro-Line and CRP iconic dyeable white nylon bumper hop-ups for the ORV (Off-Road Vehicle) R/C models not only improved the look of the Tamiya Frog (and sometimes the Subaru BRAT or Blackfoot) but also made for a better running radio controlled vehicle. How is this possible? We take a deep dive into the function and fashion of this popular mod in this episode of the RC Deep Dive podcast.