Matris SDK Steering Damper Product Details: Designed to fit in replacement of the stock damper. The SDK steering damper is designed to improve the control of the front axle, damping the oscillations and rapid setting changes, reducing the shaking of the front wheel and providing better safety at high speed. Twin tube system with Titanium outer cylinder and Aluminium alloy coaxial inner cylinder. High tensile Steel single piston rod, hard Chrome coating and lapped finish surface treatment to eliminate friction, supported by slide bearings. Hydraulic brake adjustment ring nut with 13 calibrated points of hardness. Speed sensitive progressive hydraulic damping system which reacts to sudden movements by automatically increasing damping force without restricting movement at.