Cycplus AS2 Ultra vs AS2 Pro: Don’t Buy Until You Read This 2026 Guide

  • By Niro Shan

Published: Sunday, November 23, 2025

The Cycplus AS2 electric bike pumps are everywhere you look but which one of the models is actually worth buying?

 

We had the same question. 

 

A reliable mini electric inflator can greatly help you whether you’re hiking in the mountains, biking around the city, or getting ready for a long ride. The best mini pump should be quick, accurate, portable, and easy to use. 

 

Two top choices in the portable category are the Cycplus AS2 Ultra and the Cycplus AS2 Pro. Both are compact and powerful, designed specifically for cyclists, but they have key differences that may affect your choice. 

 

In this side by side comparison, we will look at their portability, performance, smart features, battery life, and user experience. By the end, you will know which portable pump is right for your saddlebag.

Jump to section quickly:

  • Cycplus AS2 Ultra Review

  • Cycplus AS2 Pro Smart

Cycplus AS2 Ultra Review

A Pocket-Sized, Featherweight Inflator for Riders Who Value Extreme Portability

If you are a cyclist looking for a small, lightweight, and easy-to-use pump that still performs well, the AS2 Ultra is for you. Cycplus designed this pump to provide strong inflation power while fitting easily in your pocket. 

 

Moreover, the Ultra solves a common problem for cyclists: large tools that disrupt your ride. Its compact size and quick inflation make dealing with flat tires easy and stress-free.

Key Features and Specifications

  • Weight: 3.06 oz (87 g)
  • Dimensions: 2.55 × 1.10 × 1.87 in (6.5 × 4.7 × 2.8 cm)
  • Max Pressure: 120 PSI
  • Inflation Speed: 700×25C tire (0–80 PSI): 52 seconds, Road bike tire (0–120 PSI): 120 seconds
  • Display: LED screen with ±1 PSI accuracy
  • Auto Shut-Off: Yes
  • Charging Time: 25 minutes
  • Inflations per Charge: At least 2 × 700×25C (0–110 PSI)
  • Valve Support: Presta + Schrader (2-in-1)
  • Extras: Flexible air hose included
  • Intended Use: E-bike, MTB, road bike, city bike
  • Gift Appeal: Great for cyclists wanting worry-free inflation in emergencies

Performance and Usability

For something so tiny, the AS2 Ultra delivers near-instant performance. Despite being significantly smaller than the Pro model, it matches its inflation speed, filling a standard 700×25C tire from 0–80 PSI in only 52 seconds.

 

This makes the AS2 Ultra ideal for:

  • Fast roadside fixes
  • Quick mid-ride adjustments
  • Cyclists who ride with minimal gear

Its 120 PSI limit is more than enough for high-pressure road tires, while MTB and e-bike riders benefit from the consistent airflow and accuracy.

 

The LED pressure gauge shows both the preset and current PSI values, so you can easily see the tire's pressure. It has a precision of ±1 PSI, so there's no guessing or manual adjustments needed. Just set your target pressure, press start, and the pump will stop automatically when it reaches that pressure.

 

The Ultra’s biggest strength is its charging time:

 

Fully charges in just 25 minutes

 

That is practically unheard of in handheld inflators. It is perfect for grabbing a quick power boost right before heading out.

Portability & Build Style

The AS2 Ultra is a lightweight pump designed for ease of use. It weighs just 87 grams, making it lighter than most CO₂ inflators. Unlike CO₂ cartridges, you can use this pump repeatedly without needing to buy refills.

 

Its palm-sized body slips easily into:

  • Jersey pockets
  • Small saddle bags
  • Tool rolls
  • Even belt pouches

You can also clip it to your backpack, making it highly travel-friendly.

 

Cycplus uses a simple and clean design. Their approach avoids excess and focuses on what matters. This aligns with their philosophy of removing the unnecessary and enhancing essential features.

Pros and Cons of Cycplus AS2 Pro

Pros

  • Extremely lightweight (33g lighter than AS2 Pro)
  • Smallest footprint of both models
  • Fast 25-minute full charge
  • Same inflation speed as Pro despite smaller size
  • Ideal for minimalist cyclists
  • Easy single-handed use
  • Auto shut-off prevents overinflation

Cons

  • Lower battery capacity than AS2 Pro
  • Best suited for 2–3 inflations before needing a recharge
  • Not ideal for riders who inflate many tires in one outing

Cycplus AS2 Pro

A Compact, High-Efficiency Pump Designed for Riders Who Want More Power Per Charge

The AS2 Pro has the same portable design as the Ultra, but it offers more battery capacity and a slightly larger size. It is designed for cyclists who need speed, accuracy, and reliability, with a longer battery life between charges. If you want a compact inflator for tours, races, weekend trips, or group rides, the AS2 Pro is a stronger choice.

Key Features and Specifications

  • Weight: 4.23 oz (120 g)
  • Dimensions: 2.75 × 1.10 × 1.92 in
  • Max Pressure: 120 PSI
  • Inflation Speed: 700×25C tire (0–80 PSI): 52 seconds, Road tire (0–120 PSI): 120 seconds
  • Display: LED screen with ±1 PSI accuracy
  • Auto Shut-Off: Yes
  • Charging Time: 30 minutes
  • Inflations per Charge: 2 × 700×25C tires at 110 PSI
  • Valve Support: Presta + Schrader
  • Extras: Extra air hose
  • Suitable For: Mountain bikes, city bikes, road bikes, e-bikes
  • Model Name: AS2PRO
  • Style: Clean, minimal, battery powered

Performance and Usability

Performance-wise, the AS2 Pro mirrors the AS2 Ultra almost identically:

  • Same max PSI
  • Same inflation times
  • Same top-tier accuracy

The difference comes down to endurance and size.

 

Because of its slightly bigger internal battery, the AS2 Pro can handle more inflations on a single charge, making it a better fit for:

  • Long-distance cyclists
  • Multi-day touring
  • Riders preparing multiple bikes
  • Those who don’t want to recharge every ride

The LED display is clear and easy to read, even in bright sunlight. It has accurate readings within ±1 PSI, ensuring you inflate to the right pressure. Like the Ultra model, it turns off automatically when you reach your selected pressure.

 

Charging time is just 30 minutes, which is still extremely fast for a pump this size.

Portability & Build Style

The AS2 Pro is slightly larger than the Ultra, but it is still easy to carry. Weighing 120g, it is lightweight and portable, although not as light as the Ultra.

 

You can still fit it comfortably in:

  • Jersey pockets
  • Small bags
  • Travel kits

Its build is durable and reliable, with a clean, modern aesthetic. While not drastically different from the Ultra visually, the Pro has a touch more heft that makes it feel sturdier in the hand.

Pros and Cons of Cycplus AS2 Pro

Pros

  • Slightly larger battery for better endurance
  • Same fast inflation as Ultra
  • Auto shut-off and digital PSI display
  • Versatile valve system with Schrader and Presta
  • Good for riders who service multiple bikes
  • Solid build and easy handling

Cons

  • 33g heavier than the Ultra
  • Slightly bulkier in dimensions
  • Higher weight may matter to ultra-minimalist cyclists

Real-World Feedback

What Cyclists Say About the AS2 Ultra?

Riders appreciate that the Ultra feels like a true emergency companion, so light that you forget it is in your pocket. Reviewers often mention:

  • Outstanding portability
  • Fast top-ups
  • Accurate PSI readings
  • Quick 25-minute recharge

 

Some note its smaller battery capacity compared to larger inflators, but most understand that this is the trade-off for such portability.

What Cyclists Say About the AS2 Pro?

Cyclists choose the Pro for its reliability and balanced performance. They often highlight:

  • Consistent inflation power
  • Premium feel
  • Stable performance on multiple tire types
  • Accurate auto stop

Its slightly larger weight is not considered a downside by most, especially for those who prefer a device that feels sturdier.

Final Verdict:

The Cycplus AS2 Ultra and AS2 Pro are compact electric bike pumps that inflate tires quickly and accurately up to 120 PSI. They both offer fast inflation, a digital pressure display, auto shut-off, and work with Presta and Schrader valves.

 

The AS2 Ultra is the lightest and charges the fastest, making it ideal for cyclists who want a portable pump. The AS2 Pro is more durable and has a longer battery life, which is great for gravel and touring riders.

 

In summary, choose the AS2 Ultra for portability or the AS2 Pro for better endurance. Both pumps make cycling easier and more enjoyable.

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