Progressive Drop In Front Fork Lowering Kit System Harley 41mm Front Ends. Tech Note: All Touring models require removal of legs. They won't just drop in, but still easier than using the basic kit. Forget everything you know about lowering motorcycle front ends, weve completely changed the game! Our DROP-IN fork Lowering Kits have transformed a once messy, and time consuming install into a 30 minute cake walk on most models except touring. Pull up to two inches out of the front end of your bike without the hassle of disassembling the forks or even changing out the oil and the whole ...