Burly Lowboy Fork Lowering Kit - 39mm 99-05 FXD Dyna 88-15 XL SportsterBurly Lowboy Fork Lowering Kit 39mm 99 05 FXD Dyna 88 15 XL Sportster Drop it like its hot with Burly Brand Slammer Fork Kits for Harley Davidson, designed to give you a lowered front end and superior ride performance! Not only will you get that mean, aggressive, lowered look with the Lowboy Fork Kit, but youll also experience reduction in front end dive during braking giving you more control and confidence while riding. Burly springs are crafted from