Bontrager's TLR Flash Charger is a shop-worthy pump for the home mechanic. This break through design allows you to inflate tubeless-ready tires without a compressor. It's also got an extra-long hose, and an auto-select head that instantly fits both Presta and Schrader valves. A clever, built-in air release makes it easy to really dial in your pressure. And the comfy handle and large, stable base assists pumping and minimizes tipping, too. The three-arm base gives excellent stability and the top-mounted 160 psi gauge makes it easy to read.