• Compatible with Air Support HP, HP Pro, HV (429231, 429232, 429233, 429234, 429235)
- Replacement grommet/cap for Air Support pumps and Mini Charger
Use Bontrager's Presta Valve Extenders with a deep section wheel and you'll always be able to keep things properly pumped. They must be used with a removable valve core tube.
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
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