The system comes with a tap to thread the inside of each handlebar end. Next, the exclusive nylon-blend material mount is threaded inside. Last, you mount your Grip Protectors using included countersunk bolts. The system works with most aluminum handlebars (does not work with Renthal Twinwall or Azonic Double Wall handlebars).  The new G2 Ergonomics Grip Protector System helps keep your grips looking great even after your bike hits the ground. A great safety feature is the ?right-side? grip protector keeps the throttle from sticking when the bike lays down.