Electric Mini Bike Pump Review
CYCPLUS AS2 Ultra vs A3 Mini: Which Electric Pump Is Better?
by BenjaminUpdated on 10 August 2026
CYCPLUS AS2 Ultra or A3 Mini? Anyone seeking a small electric road bike pump will quickly encounter these two models. Both reach 120 PSI, display pressure digitally and stop automatically at the target value. In direct real-world testing, your intended use is therefore decisive: the AS2 Ultra is about half the weight and considerably more compact, while the A3 Mini has a battery five times larger.
Brief verdict
For long rides, gravel and bikepacking, the CYCPLUS A3 Mini is my endurance recommendation, inflating 14 complete road tyres in testing. The AS2 Ultra wins for minimalist road rides: at 65 × 47.5 × 28mm and 113g including its hose, it slips much more easily into a jersey pocket.
| Who for? | Recommendation |
|---|---|
| Long rides | A3 Mini |
| Jersey Pocket | AS2 Ultra |
| Gravel & Bikepacking | A3 Mini |
| Lightweight Road Setup | AS2 Ultra |
- 2,000mAh Battery
- 14 Tyre Inflations in Testing
- Ideal for Long Rides
- Only 113g with Hose
- Extremely Small Packed Size
- Ideal for a Jersey Pocket
* Affiliate link. Check current price and availability on Amazon; I may receive a commission at no extra cost to you.
Both Electric Bike Pumps Personally Tested
The recommendation is based on my real-world tests of the CYCPLUS A3 Mini and CYCPLUS AS2 Ultra, including inflation time, maximum pressure, pressure cross-checks, battery endurance, heat and transport.
Electric Mini Bike Pumps Tested: How I Compared Them
For this electric mini bike pump comparison, I tested both models on road tyres, comparing inflation speed, achieved pressure, display accuracy, battery life, operation, heat and packed size. The A3 Mini inflated a 25mm tyre from 0 to 5.5 bar in 1:07 minutes; the AS2 Ultra reached 5.4 bar in 1:14 minutes in my test. As tyres and targets differ slightly, these times provide practical guidance rather than an identical laboratory comparison. Find full details and experience in my CYCPLUS AS2 Ultra review and CYCPLUS A3 Mini review.
CYCPLUS AS2 Ultra vs A3 Mini: Electric Bike Pumps Compared
| Feature | A3 Mini | AS2 Ultra | Advantage |
|---|---|---|---|
| Dimensions | 106 × 52 × 42mm | 65 × 47.5 × 28mm | AS2 Ultra |
| Test Weight with Hose | 225g | 113 g | AS2 Ultra |
| Battery Capacity | 2,000mAh | 400mAh | A3 Mini |
| Maximum pressure | 120 PSI / 8.3 bar | 120 PSI / 8.3 bar | Tie |
| Tyre Inflations in Testing | 14 × Road Tyres to 5.5 Bar | Around 2–3 Road Tyres | A3 Mini |
| Inflation Time in Testing | 1:07 min to 5.5 bar | 1:14 min to 5.4 bar | Almost equal |
| Digital Pressure Display | Yes | Yes | Tie |
| Target Pressure & Auto-Stop | Yes | Yes | Tie |
| USB-C | Yes | Yes | Tie |
| Best Storage Location | Frame or Top-Tube Bag | Jersey Pocket | Depends on the Ride |
Test results depend on tyre width, volume, starting pressure, temperature and cooling breaks.
Quick buying decision
Buy the A3 Mini If You…
- take long rides, go bikepacking or spend several days away,
- also want reliable inflation for gravel and MTB tyres,
- prefer extra battery reserve to minimal weight.
Buy the AS2 Ultra If…
- you want a tiny electric pump for your jersey pocket,
- you mainly ride road bikes and every gram counts,
- two or three emergency tyre inflations are enough.
Battery-Powered Pump for Road and Gravel Bikes: Which Model Suits You?
Bikepacking & Multi-Day Trips
A3 MiniThe 2,000mAh battery provides considerably more reserve when charging on the move is difficult.
Road Cycling & Lightweight Setup
AS2 UltraThe small body and measured 113g weight with hose fit better in a jersey pocket.
Gravel & MTB
A3 MiniMore battery reserve is the decisive advantage for high-volume tyres.
Emergency on Your Local Loop
AS2 UltraEnough performance for a typical puncture with minimal packed size.
CYCPLUS AS2 Ultra Weight and Performance vs A3 Mini
🔋 Battery & Range
At 2,000mAh, the A3 Mini has five times the AS2 Ultra's nominal capacity. In real-world testing, it achieved 14 complete inflations of a 25mm road tyre to 5.5 bar. The AS2 Ultra managed around two or three road tyres, enough for punctures but not many consecutive inflations.
⚖️ Size & Weight
Here the result reverses: the AS2 Ultra measures only 65 × 47.5 × 28mm and weighed 113g with hose in testing. At 106 × 52 × 42mm and 225g with hose, the A3 Mini is considerably more substantial. It fits a jersey pocket but is noticeable there, making a frame or top-tube bag preferable.
⏱️ Inflation Speed
Both pumps inflated a road tyre to around 5.5 bar in just over a minute. The A3 Mini needed 1:07 minutes to reach 5.5 bar; the AS2 Ultra took 1:14 minutes to reach 5.4 bar. Both are fast in practice, with tyre model and volume affecting time.
🎯 Pressure Display & Auto-stop
Both models display current pressure digitally. Set the target, start the pump and it stops automatically. Checks against a separate Schwalbe pressure gauge confirmed practical accuracy for both.
🌡️ Heat & Safety
Small electric compressors get hot during use. The A3 Mini's overheating protection intervened once in continuous testing. The AS2 Ultra's pump head and valve can also become very hot. Always use the extension hose with TPU tubes that have plastic valves, and let both pumps cool between repeated inflations.
💶 Value for Money
The better choice depends more on your ride than specifications. The A3 Mini compensates for its larger packed size with huge endurance. The AS2 Ultra is the more refined minimalist option when an electric pump needs to fit unobtrusively into a jersey pocket. Compare current Amazon and CYCPLUS prices.
FAQ: CYCPLUS AS2 Ultra vs A3 Mini
Which CYCPLUS Mini Pump Is Best on the Move?
The A3 Mini is better for long rides and maximum battery reserve. The AS2 Ultra is stronger for the smallest, lightest road setup and jersey-pocket storage.
Which Small Electric Pump Suits a Road Bike?
Both fit a jersey pocket, but the AS2 Ultra's smaller body and 113g weight including hose make it much less noticeable. The 225g A3 Mini is clearly felt while riding.
How Many Tyres Can the A3 Mini Inflate?
In real-world testing, the A3 Mini managed 14 complete inflations of a 25mm road tyre from 0 to 5.5 bar. The actual number depends on tyre volume, starting pressure, target pressure and temperature.
How Long Does the CYCPLUS AS2 Ultra Battery Last?
One charge inflated approximately two or three road tyres in testing. The number possible at a particular pressure depends on tyre width, volume, starting pressure and temperature.
Do Both Pumps Reach 8.3 Bar?
Yes. Both specify a maximum of 120 PSI, around 8.3 bar, and reached that high pressure in their respective real-world tests.
Can I Use Them with TPU Tubes?
Yes, but always use the extension hose with plastic-valved TPU tubes because of the heat. Let the connection and pump cool after use.
Is an Electric Mini Bike Pump Worth Buying?
Yes, if you want to get going quickly after a puncture without physical effort. An electric mini pump does not replace a floor pump at home, but is more convenient than a small hand pump on the move and needs no CO₂ cartridge.
Advantages and disadvantages compared directly
CYCPLUS A3 Mini
Pros
- Very large 2,000mAh battery
- 14 road tyres in real-world testing
- Fast inflation and 120 PSI
- Good for gravel, MTB and bikepacking
Cons
- Considerably larger than the AS2 Ultra
- 225g measured weight with hose
- Too large for small road saddle bags
- Overheating protection intervened in continuous testing
CYCPLUS AS2 Ultra
Pros
- Extremely compact and jersey-pocket friendly
- Only 113g measured weight with hose
- Target pressure and reliable auto-stop
- Two or three tyres as emergency reserve
Cons
- Small 400mAh battery
- Less reserve for large tyres
- Clearly audible compressor
- Significant heat at the pump head
Conclusion of Our CYCPLUS AS2 Ultra vs A3 Mini Test
The A3 Mini wins for endurance, the AS2 Ultra for compactness. Both are technically similar, with 120 PSI, digital pressure display, adjustable target and auto-stop. Transport therefore decides the right purchase: choose the A3 Mini for plenty of battery reserve in a frame or top-tube bag. Choose the AS2 Ultra if the electric mini pump needs to fit lightly into a jersey pocket.