RMATVMC Keefer Tested Show #452: Recently Tested Parts (Gear, Hard Parts, Fuel, Bikes)

In this show Keefer walks you through Alpinestars Tech Air Bag chest protector, VPT4 issues, Yoshimura/Akrapovic mufflers, YZ250F mods and a lot more in this smorgasbord of things that Keefer has tested.