If you have an air compressor in your garage or shop, the missing link between the hose and your bike tires is usually a decent inflation head. Generic compressor chucks leak on Presta valves, don't have a cycling-specific pressure gauge, and make tubeless bead seating a guessing game. Park Tool's INF-2 Shop Inflator is purpose-built to solve all three problems. It connects to your existing compressor hose and gives you a dual-sided head that handles both Presta and Schrader valves, a built-in analog gauge reading 0-160 psi (0-11 bar), and a trigger mechanism that lets you control airflow precisely enough to seat tubeless beads without blowing sealant everywhere.

The head rotates 360 degrees, which matters more than you'd think. Valve stem angles vary depending on wheel depth, spoke lacing, and whether you're working on a wheel in a truing stand or still on the bike. That rotation means you're not fighting the tool to get a seal. The body is lightweight aluminum with an ergonomic shape, and Park Tool redesigned the trigger on the INF-2 to double as a hook point so you can hang it from a pegboard, compressor handle, or workstand when it's not in use. A rubber boot protects the pressure gauge from shop drops.

The INF-2 ships with the common M-style industrial plug, which is the standard quick-disconnect fitting on most shop compressors in the US. The plug threads into a 3/8" NPT port on the inflator body, so if your compressor uses a different coupler standard you can swap the plug for whatever fitting matches your setup. That's worth noting if you're running European quick-disconnect or Japanese-style couplers on imported compressors.... Read More