they look like exposed sections of riveted metal (2)

RC3 & RC4 Timing System

One fail and your ESC will eject like a bullet from a gun

With its 6S LiPo battery compatibility (battery and charger sold separately)

Kyosho - 1/18 Scale BMW 2002 Turbo White Model Diecast Car Manga they look like exposed sectionsThe BMW 02 series is a compact 2 door sedan based on the Neue Classe (New Class 4 door sedan) that laid the foundation for BMW that continues to this day. The highest grade sports model was the 2002 Turbo, which appeared in 1973 as the first mass produced car equipped with a turbocharger. The engine combined a 2L in line 4 cylinder SOHC with a KKK turbocharger that had its origins in the 2002 TIK, which raced in the Group 5 touring car series of 1969