Cycplus Cube As2 Pro Mini Pump

The Cycplus AS2 Pro is a 120 g, 70 x 49 x 28 mm mini electric bike pump with a 120 PSI maximum and an LED screen showing real-time tyre pressure: set your target pressure, press once, and it stops automatically when it gets there. Small enough for a saddle bag or backpack, it saves you pumping by hand after a roadside puncture, and works on road bikes, folding bikes and mountain bikes.

The AS2 PRO electric air pump is an essential must-have for outdoor adventures! Even if you get a flat tire, there's no need to worry - you can effortlessly inflate it back up. Weighing little and featuring a compact size, this latest model comes with a screen display, allowing you to monitor the tire pressure more clearly. It works with both Presta and Schrader valves and switches between them quickly. Whether it's a road bike, folding bike, or mountain bike, the AS2 PRO is a versatile companion that can handle them all!

At a Glance

• Category: mini electric bike pump (portable tyre inflator)
• Brand: Cycplus (written CYCPLUS by the brand; Chengdu, China)
• Weight and size: 120 g, 70 x 49 x 28 mm
• Max pressure: 120 PSI (8.3 bar)
• Battery and charging: 420mAh 7.4V (3.11Wh), USB Type-C, about 30 minutes to full charge (official comparison chart)
• Valves: set up for Presta out of the box, add the pillar for Schrader; extension hose and ball needle included
• Best for: riders who want a small pump to carry instead of a mini hand pump or CO2; if you need to inflate several high-pressure tyres per charge, compare the larger-battery AS2 Pro Max

What Problem Does It Solve?

After fixing a puncture on the road, getting a road tyre back to high pressure with a mini hand pump is hard work, and it's difficult to know exactly how much air you've put in. With the AS2 Pro you set a target pressure with the + and - buttons, press the power button to start, and it stops automatically when the target is reached, while the screen shows the live pressure and battery level. At 70 x 49 x 28 mm it fits in a saddle bag or jersey pocket.

Who Is It For?

Road, folding and mountain bike riders who want a pump to carry on rides, or a replacement for a hand pump at home. Cycplus's comparison chart rates one full charge at 2 inflations to 110 PSI; if you regularly inflate several bikes to high pressure or want faster inflation, Cycplus's AS2 Pro Max has a bigger battery (11.1V 600mAh) but weighs 205 g. If you only need basic inflation without a screen, consider the lighter CYCPLUS Tiny Pump Cube (AS2).

Set the pressure, auto stop

Once switched on, the screen shows the current tyre pressure. Set the target with the + and - buttons and press the power button to start; it stops automatically at the target. Press + and - together to switch between PSI and BAR. It powers off automatically after 1 minute without use. Cycplus's comparison chart lists an accuracy of 1 PSI.

Presta, Schrader and ball valves

It's set up for Presta valves out of the box; for Schrader, fit the pillar and flip the seal part. An extension hose, Presta valve converter and ball needle are included. The official manual recommends using the hose for Schrader valves and whenever the target pressure is above 100 PSI.

Use the hose with TPU tubes

The official manual warns that TPU inner tubes with resin valves must be inflated through the extension hose, otherwise the valve may melt from the heat. The pump gets warm in use, and Cycplus recommends using it in the supplied silicone case.

Cycplus AS2 vs AS2 Pro vs AS2 Pro Max

Here are Cycplus's three mini electric pumps compared:

Source: Cycplus official comparison chart (Purchase Guide). The AS2 Pro Max is not listed on Jollymap's shop and is shown for comparison only.

Jollymap Recommendation

The AS2 Pro suits riders who want to set a pressure and press one button; the screen shows exactly what's in the tyre, which is especially handy at road-bike pressures. If you have the AS2 (Tiny Pump Cube) and want to inflate TPU tubes or small folding-bike tyres, add the Cycplus Extension Tube Kit for Cube (the AS2 Pro already includes a hose). Not sure it suits your valves? Before ordering, chat with us or message our Facebook page with a photo of your valve.

Specifications

Cycplus AS2 Pro
Brand	Cycplus
Size	70 x 49 x 28 mm
Weight	120 g
Max pressure	120 PSI (8.3 bar)
Battery	420mAh 7.4V, 3.11Wh
Charging port	Type-C 5V 1.5A
Current	2.5-7.5 A
Display	LED screen: real-time pressure, unit (PSI/BAR), battery level
Buttons	Power, +, -
Valves	Presta, Schrader, ball needle
In the box	Inflator, silicone case, seal part, Schrader pillar, cable, extension hose, Presta valve converter, ball needle, waterproof bag

Specifications source: Cycplus AS2 Pro official user manual.

FAQ

What's the difference between the Cycplus AS2 Pro and AS2 Pro Max?

Mainly battery and size. According to Cycplus's comparison chart, the AS2 Pro weighs 120 g with a 7.4V 420mAh battery good for 2 inflations to 110 PSI per charge; the AS2 Pro Max weighs 205 g with an 11.1V 600mAh battery good for 4 inflations to 120 PSI, reaching 120 PSI in about 75 seconds (about 2 minutes for the AS2 Pro). Both top out at 120 PSI and show real-time pressure. This page sells the AS2 Pro.

What's the difference between the Cycplus AS2 Pro and the AS2 (Tiny Pump Cube)?

The AS2 Pro has a screen with real-time pressure and a preset target, goes up to 120 PSI and includes an extension hose; the AS2 (Tiny Pump Cube) has no screen and goes up to 100 PSI, but weighs only 97 g, and its hose is sold separately.

How much does the Cycplus AS2 Pro weigh, and how big is the battery?

120 g, 70 x 49 x 28 mm, with a 420mAh 7.4V (3.11Wh) battery charged via USB Type-C; Cycplus's comparison chart lists about 30 minutes for a full charge.

How do I use the Cycplus AS2 Pro?

Long-press the power button to switch on and the screen shows the current pressure. Set the target with + and -, then press the power button to start; it stops automatically at the target. Press + and - together to switch between PSI and BAR, and long-press the power button to switch off. Fully charge it before first use.

Does the Cycplus AS2 Pro work with Presta or Schrader valves?

Both. It's set up for Presta out of the box; for Schrader, fit the supplied pillar and adjust the seal part. Cycplus recommends using the extension hose for Schrader valves or when the target pressure is above 100 PSI, to prevent air leaking at the nozzle.

Can I use the Cycplus AS2 Pro with TPU inner tubes?

Yes, but only with the extension hose. The official manual warns that a TPU tube's resin valve may melt from the heat if the pump is connected directly.

Can the Cycplus AS2 Pro inflate car tyres?

Cycplus describes the AS2 Pro as a bicycle tyre inflator; it includes a ball needle, but car tyres are not listed. If you also need to inflate car tyres, see the Cycplus Electric Air Pump A8, whose listing covers bicycle and car tyres.

Can I take the Cycplus AS2 Pro on a plane?

It depends on the airline. The AS2 Pro has a built-in 3.11Wh lithium battery (official spec); whether it can go in hand luggage or checked baggage depends on the airline's and airport's current rules, so check with your airline before you fly.

Where can I buy the Cycplus AS2 Pro in Hong Kong?

Jollymap sells it online and in store. To check it suits your valves before ordering, chat with us or message our Facebook page.

Specifications and components follow the manufacturer's latest release and may change without notice. If in doubt, please contact us to confirm before ordering.

Last updated: October 2026