RacingBros Adjustable Front Fork Kit Honda Grom 125 Spring pre-load adjustable on both sides, rebound adjustable on one side, and dampening adjustable on the other! Quickly adjust your forks to your desired riding style or tune it for different tracks! Engineered and built specifically for the Grom! Professional installation is highly recommended. Special tools are needed to install the RacingBros Front Fork Kits.