The Cycplus AS2 Ultra is a tiny, pocketable electric pump that brings the gauge and display of the AS2 Pro into a case the size of the original AS2. A magnesium-alloy outer shell keeps weight down to just 87g — against 120g for the AS2 Pro — so it slips easily into a jersey pocket or saddle bag while still delivering real inflation power at the roadside.

A reusable alternative to CO2 cartridges, the AS2 Ultra is plane-safe for international bike adventures, charges over USB-C to full in around 25 minutes, and reads accurate pressure to within ±1 psi on its built-in gauge.

Key Features

• Ultra-light 87g magnesium-alloy body
• Built-in pressure gauge and display (from the AS2 Pro) in the compact AS2 case
• Inflates 2 x 700×28C tyres from 0–80 psi per charge
• USB-C fast charging — full charge in about 25 minutes
• Reusable, plane-safe alternative to CO2 cartridges
• Heat-resistant silicone case
• Presta out of the box; Schrader compatible with a simple nozzle swap

Specifications

• Weight: 87g
• Max pressure: 120 psi (700×25C)
• Gauge accuracy: ±1 psi
• Charging: USB-C, ~25 min to full
• Casing: magnesium alloy with heat-resistant silicone sleeve
• Valve compatibility: Presta (Schrader via nozzle swap)