Fox 2.5 Air Bump Stops with pinch bolt are a great way to improve the bottoming control of your suspension. 2.5 Fox Air Bumps provide tunable damping and spring force to adjust for the needs of your vehicle. Pinch bolt mounts are the classic method for mounting Fox 2.5 Air Bumps due to their simplicity. Check out our Guide to Suspension Design For Going Fast in Comfort to learn more about selection and setup of Fox 2.5 Air Bumps. Improve your bottoming comfort and save your suspension with Fox 2.5 Air Bumps from AccuTune Off-Road.