Black anodized Pre-Load aluminum cap (39 mm) to replace original fork tube plugs. Smaller hexagon (19 mm ̴_ inch) can easily and quickly load up to 10 mm fork spring. An additional central Allen head bolt is used to facilitate maintenance and oil refill without remove the fork tube plugs. Suitable only for Harley Davidson Sportster models until 2015 with fork diam. 39 mm. For installation is recommended the anti-scratch special tool 1” 1/4 code 201302. Fast and easy to assemble, requires no modification. Ready for installation with instruction. As Free Spirits tradition all the modifications are reversible. For this kit spare parts are available.