IMAGE FOR ILLUSTRATION PURPOSES ONLY. The YSS Fork Upgrade Kit includes. The fork valve changes the oil flow in the fork in both directions and the fork spring causes a firmer spring behavior. With the handlebar cover, the spring preload of the fork can be fine-tuned again: Turning the adjusting screw increases the pressure and thus the preload of the fork spring.YSS delivers this kit vehicle-specific throughout the set. This item is in the category "Vehicle Parts & Accessories\Motorcycle Parts\Suspension & Handling\Fork Tubes & Stanchions". The seller is "biketyresuk" and is located in this country: GB. This item can be shipped worldwide.