With the Armor's hard-shell Lumbar Lock technology, the harness does not rotate or slide; it locks in place and stays exactly where it should. This means lateral motion must come from the spreader bar. This setup is totally unique and provides a smooth and full range of motion, allowing the harness's lumbar lock technology to work its magic while rider changes angles of attack, carves upwind, rides toeside and slashes waves. + Lighter than standard fixed hook spreader bar + Ergonomic fit + Replaceable rope + Speed-Lock compatible + Rope system provides optimal angle of attack + Allows smooth and full range of motion + Keeps harness locked in place where it should be + Easy interchange to fixed hook option + COMPATIBLE with 2016/17 Ride Engine Harnesses. NOT COMPATIBLE with 2018-Current Harnesses