COOSPO X1 Mini Electric Bike Pump 120PSI 500mAh Portable Rechargeable MTB Bike Air Digital Inflator Schrader Presta Tire Valve

The reviewer describes the COOSPO X1 mini bike pump as tiny and portable, fitting easily in a saddle bag or jersey pocket. It includes an extender hose and press valve adapter, with a screen to set and view pressure. It doubles as a CO2 cartridge inflator. The reviewer notes it is loud but works well for topping up tires or handling flats, especially when traveling where CO2 cartridges are not allowed. For a 25C tire, it takes about 40 seconds to reach 80 PSI and can fill up to four tires (0-90 PSI) or about 3.5 tires in 65 seconds.

The reviewer discusses the COOSPO X1 Mini Electric Bike Pump, noting its compact size, light weight, and electric operation. It can inflate a tire to 120 PSI and automatically shuts off at the target pressure. The reviewer finds it convenient for pre-ride top-ups and mentions it inflates a 700x23c tire from flat to 110 PSI in about 90 seconds, with roughly four full tire inflations per charge.