Progressive Suspension 10-1559 Drop-In Fork Lowering Kit Drop-In fork lowering kits have transformed a once messy, and time consuming install into a cake walk 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 process can be done with basic tools Shorter springs and Progressive's new secondary compensation spring make short work of the formerly complicated act of lowering your front end No special tools required Easy to install