Vertex Valve Exhaust - Titanium thumpstar 6 ohms +/-20%

6 ohms +/-20%

55mm WIDTH OF ROLLER 25

The progressive rate spring provides bottoming resistance with improved damping for an extra comfortable ride

5 ohms +/- 20%

Vertex Valve Exhaust - Titanium thumpstar 6 ohms +/-20%Crafted from military spec certified TI3Al titanium alloy Vertex Titanium Valves are made to endure the harshest racing conditions. Forged from a single blank grain flow is improved to enhance the mechanical characteristics of the valve without having to resort to welding. Special PVD CVD and CrN coatings are used to provide low friction surfaces that reduce heat generation and resist carbon build up; coatings allow alloys like titanium to become