About SUMART Welcome to SUMART! We are a tools manufacturing company based in Taichung, Taiwan, dedicated to creating exceptional cycling tool products. Our innovative designs and pioneering techniques set us apart in the industry. Our Mission At SUMART, we believe there’s always room for improvement in cycling tools. Our mission is to blend technology, design, and industry knowledge to create products that stand out. We embrace the latest engineering and manufacturing technologies to bring you unique products that combine style and functionality. Company Overview We proudly export a wide range of high-quality cycling accessories, from repair and maintenance tools to essential gear. Since our founding in 1992, we’ve honed our craft to meet the needs of cyclists worldwide. Our Commitment We’re not satisfied with average. We continually test and refine our products to ensure they exceed your expectations. Our tools are designed to be sleek, stylish, and highly functional, offering more value than other products in the same price range. Sumart Tools – We’ve Thought of Everything! At Sumart Tools, we are committed to exceptional quality and craftsmanship in every product. We pay close attention to detail and strive to understand what cyclists truly need. Our goal is to provide you with the ultimate cycling tool experience, exceeding your expectations every time.
Sumart Airseal 5

Sumart Airseal 5

£19.99

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AirSeal5 – Premium CO2 Inflator + Open Eye Tool, with 3 bacon strips


The AirSeal5 is a compact, high-precision CO2 inflator designed for riders who demand speed, control, and reliability. What makes it stand out is its integrated Open Eye Tool, which can be attached to the top of the inflator to increase leverage, giving you extra grip and control when inserting tubeless plugs or handling tough trailside fixes.


Built with CNC-machined aluminum, the AirSeal5 combines strength with a sleek, lightweight design that’s easy to carry in your pocket, saddlebag, or tool kit. Whether you’re inflating a tire or sealing a tubeless puncture, the AirSeal5 keeps you prepared for any ride emergency.


The AirSeal5 is more than just a CO2 inflator—it’s a complete trailside solution. With its dual functionality and leverage-boosting Open Eye Tool, you’ll be ready to inflate, repair, and keep riding with total confidence.