Fox Air Bump stops provide premium bottoming control through damping and air spring forces. Both control methods can be tuned on Fox Air Bumps to provide the ultimate balance between control and harshness. Fox 2.0 Air Bumps are a great choice for most vehicles and are available in a wide range of lengths. Fox 2.5 Air Bumps are a great choice for racers and heavy vehicles. 2.5 Fox Air Bumps are available in two mounting configurations, pinch bolt and threaded stud. Check out our Guide To Suspension Design For Going Fast in Comfort to learn more about Fox Air Bump selection and setup. Take control of your bottoming with Fox Air Bumps from AccuTune Off-Road.