The CYCPLUS AS2 is an ultra-compact electric bike pump designed for portability rather than heavy-duty use. It’s small enough to slip into a jersey pocket or saddle bag, which makes it a different proposition from larger floor pumps or even most mini electric pumps. The question is whether its convenience outweighs its limitations.
In real-world use, the AS2 is best suited for topping off tires before a ride or dealing with a slow leak on the go. It’s not a tool for inflating a completely flat tire from zero PSI, especially on a road bike with high-pressure tires. The pump manages up to 100 PSI, but reaching that pressure takes time and patience. On a 700x25c road tire, expect to spend several minutes adding just 10-15 PSI. For mountain bike tires or gravel tires with lower pressure requirements, it’s more practical and quicker.
Key features include a Type-C rechargeable battery, a compact cylindrical design, and a simple button interface. There is no pressure display, which is a notable trade-off. You have to rely on feel or a separate gauge to know when you’ve hit your target pressure. The lack of a digital readout keeps the size down and the cost lower, but it also means you’re guessing to some extent. The pump uses a flexible rubber hose that connects to Presta or Schrader valves, and the connection feels secure enough for occasional use.
Limitations are clear: the battery life is modest. After a few top-offs or one full inflation of a larger tire, you’ll need to recharge. The pump also gets warm during extended use, which is common for small compressors but worth noting if you’re inflating multiple tires. The motor is audible but not excessively loud—about as loud as a small electric toothbrush.
- Strengths: Extremely portable, easy to store, rechargeable via USB-C, simple operation.
- Weaknesses: No pressure gauge, slow inflation at higher PSI, limited battery life for multiple uses.
Compared to a traditional mini hand pump, the AS2 is much less effort—no manual pumping required—but it’s heavier and relies on battery power. Against a CO2 inflator, it’s reusable and doesn’t require cartridges, but it’s slower and bulkier. For riders who already carry a small hand pump as a backup, the AS2 could replace it if you’re willing to manage battery levels. For those who prioritize speed and certainty, a CO2 inflator or a larger electric pump like the CYCPLUS AS1 (which has a pressure display and higher output) might be more reliable.
Who is this for? Commuters and recreational cyclists who want a low-maintenance way to keep their tires topped up, especially if they ride bikes with moderate tire pressures. Also suitable for travelers who want a pump that fits in a carry-on bag. It’s not ideal for road cyclists who need precise pressure control or for anyone who frequently deals with flats far from a power source. The AS2 is a niche tool—handy for certain situations, but not a replacement for a proper floor pump at home.
Build quality is decent for the price point. The plastic housing feels sturdy enough, though the charging port cover is a bit flimsy. The pump comes with a valve adapter and a short charging cable, but no storage case. Overall, the CYCPLUS AS2 delivers on its promise of ultra-portability, but the lack of a pressure display and slow inflation speed mean it’s best viewed as a convenience item rather than a primary pump.