Review on 🚲 CycloSpirit Universal Bicycle Tire Inflator Gauge: Auto-Select Valve Type - Presta and Schrader Air Compressor Tool by Deron Gilliam

. The dual purpose adapter on this thing doesn't match well with the Presta valves I've tried so far. When used with a Schrader valve, the adapter fits snugly and you don't have to worry about it coming loose. With Presta valves, I have to press and hold it firmly against the valve to inflate the tires. If I try to hold and release it, the adapter falls off. Overall it seems to be working, so it's better than nothing and better than what I had. But a better clamp adapter would really help there.