Race Tech's revolutionary new G2-R Gold Valves are dual port pistons made of Billet Aircraft Aluminum and are MIL Spec Hard Anodized. G2-R Gold Valves are designed to optimize the loading of the shims while improving flow. These versatile valves blow away all previous limitations! Creates traction and a feel like no other valve in the World - guaranteed! G2-R Gold Valves can be preloaded (digressive), freeloaded and/or restricted (progressive). Dirt, Road Race, Street, Off-road or Supermoto. G2-R's take the place of both Type 1 & Type 2 Gold Valves.