The two halves thread together and are sealed by an O-ring. Both are housed within the same 6061 machined aluminum capsule. The two we checked out are the most popular, the lozenge-shaped Dynaplug Micro Pro and Dynaplug Pill. The Dynaplug comes in several different configurations. It’s also worth noting that they offer rounded, ‘bullet-tipped’ plugs as well. In the event of an emergency, Dynaplug states you can use up to four plugs at once for larger tears, although they also mention that a proper repair should be made once available. Each brass-tipped plug is designed to offer a permanent fix for punctures up to 4.6mm (about 3/16″) in diameter. This never happened during our testing period, but it seems like it having the brass piece bouncing around inside the tire could be rather annoying if it did occur.Īt any rate, function is more important than form. Based on centrifugal testing they found that the tip will eventually disintegrate, without causing further issues. They chose brass because it’s a soft metal that will wear down over time, and brass is inherently non-abrasive to tire rubber. However, according to Dynaplug, if the brass tip breaks free from the plug, there is nothing to worry about. Fortunately I was unlucky enough to be able to try it, three times…Īt first glance, the plugs seem a bit odd the sharp brass tips don’t look like something you’d want sticking inside your bike tire. Even though I hadn’t had a chance to test its merit, I decided to bring it along, untried, hoping that it would work in the event of a tear big enough to thwart the efficacy of tubeless sealant. This silver Dynaplug Micro Pro tool rattled around my frame bag and backpack for months prior to our trip in the Republic of Georgia. The repair plugs are each made of a proprietary rubber-impregnated cord mounted to a pointed, non-abbrasive brass tip. The tube is preloaded with a repair plug where it sits in place, ready for action. The crux of the patented system is a two-piece aluminum body with a hollow stainless steel insertion tube that’s threaded into the handle. In essence, Dynaplug is designed to be a quick and easy puncture repair tool for tubeless tires. Someone pointed out the Dynaplug as a superior solution, so I decided to give it a try. But they require some finesse, super glue, and often equally as much frustration and swearing. I typically carry five or six of the reddish brown strips and the tiny screwdriver handle tool to insert them. Relying on spare tubes alone introduces the risk of pinch flats, small punctures, additional patches… and the prospect of having to carry your bike out of the backcountry should your options run out - which I have experienced. However, in my opinion, they are an indispensable part of a proper bikepacking repair kit. With a proper tubeless setup, and generally tough tires, it’s not often that you have to resort to tire plugs.
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