Cad Plated Steel Ends with 3/4 inch Stainless Steel Body. These links allow you to go start off at at 1-2 inces lower (varies depending on model) and lower the bike to super low. These are the only ones on the market that will allow you to lower your bike lower than the any other fully adjustable links on the market. The SpencerCycle Fully Adjustable Lowring links ARE Stainless Steel so you can SAFELY lower the bike with out the worry of the threads gauling or striping...unlike others on the market. Beefy and Strong enough for todays 500 plus horsepower turbo bikes as well as for the everyday sport bike. Lower fairing may need modification in order to use these links