Parts & Accessories

• Compatible with Air Support HP, HP Pro, HV (429231, 429232, 429233, 429234, 429235)

Similar to an accurate chain checker, this tool is designed to give you a quantitative measurement on exactly how worn your Bontrager tires are. Use this highly accurate gauge with the chart in the product image, which shows Bontrager's minimum recommended tread depth. - Dial gauge designed to precisely measure Bontrager tire wear - Use in conjunction with the chart in product image to know minimum tread depth - The tire should be measured on the center knobs with multiple points taken - The perfect tool to prove how worn a tire is and thus replace at the proper interval