- DETAILS
Stan’s unveiled the Dual Action Repair for Tubeless (DART) Tool in 2019, ushering in the first repair plug designed specifically for tubeless bicycle tires, rather than a scaled-down version of what was available in the automotive and motorcycle world. Subsequent refinements made way for the tool’s rerelease as the Original DART Tool in 2025, introducing a stainless steel insertion rod accompanied by an improved DART developed through the first tool’s lifespan.
By using a flexible, laser-cut material, the DART conforms to nonuniform puncture shapes caused by the jagged and sharp edges of debris and obstacles found on trails, roads, and paths. Treated with a reactive solution, the DART bonds with liquid sealant on the inside of a tubeless tire to form both a chemical and mechanical seal to permanently bond a puncture too large for tubeless sealant to repair on its own.
Complete with two DARTs, the tool weighs only 15-grams and fits comfortably in any small pack pocket. For added convenience, the base of the molded plastic tool body features a Presta valve core remover to aid in-the-field sealant topoffs with either a 60ml or 120ml bottle of Stan’s Original Tubeless Sealant.
- New for 2025: updated stainless steel insertion rod
- Includes two DARTs, refills sold separately
- Repairs punctures and slices too large for sealant alone to seal
- Woven, laser-cut material easily conforms to nonuniform punctures shapes
- Base of tool features molded Presta core tool for sealant top-offs
- Clear caps keep DARTs clean and unthread for quick use
After switching to tubeless on one of my road bikes, I hit a piece of metal which ended up wrapped around a spoke. Left about a 1/4 inch slice in the center contact area of my rear tire. The Stans Sealant did it's job and I was able to finish the last 20 miles of that ride with no issues. On a subsequent ride a couple weeks later, same tire punctured again and again I was able to make it home, but was losing air(and sealant) very slowly. I placed a Stans DART into the puncture with the Stans Original DART Tool and continue to ride that tire with no issues. I eventually converted a second road bike to tubeless and first ride with that setup I got a puncture that turned out to be a small metal pin which ended up inside the tire. After a couple of attempts to get the sealant to seal roadside, I put a Stans DART in the hole which sealed it immediately. I am very pleased with my results thus far and recommend both the Stans Original DART Tool and DARTS as well as Stans Original Tubeless Sealant. Well done Stans!
I bought this 4 months ago and have attempted to use it four or five times since then on my road bike. Sometimes I can't get the dart into the puncture hole and have to enlarge it slightly, then when I do get it in it doesn't seal - the sealant continues to bubble out through the dart. I was so hopeful about this product so it is very disappointing.
I had a small nail puncture close to the center of the rear tire. It was extremely difficult trying to insert the dart into the puncture. Especially, with a deflated tire. I had to drill the hole larger just to get the dart in. Once I got the dart in I filed the tire with 120ml of Stan’s sealant. I reflated the tire to 20psi. I rotated the tire so that the sealant would interact with the dart material. It did not seal the puncture. The product does not work in my experience.
35.-CAD out the window. Very hard to get the dart into the tire, I broke both shaft at each ends of the dart. Finally got it in with a small screwdriver and when I turned the wheel to get the sealant reacting with the fabric slug, the sealant was dripping from the puncture anI was never able to inflate the tire.
Hans,
It sounds like you have the old version of the Dart Tool. We have made improvements to the durability and function of the DART tool this past year. All Stan's tools come with a LIFETIME WARRANTY. Please fill out our Warranty Claim Form so we can send you a replacment.
My Giant dealer sold me this when they were out of other products. It did not seal with the first Dart into my road tire. In trying to use the second dart, the internal post that holds the dart broke off. Why is it made of such flimsy material? I would never buy this again. The follow up was to purchase Giant tire plugs that worked reliably and were much cheaper (10 for $15, including durable tool and lightweight carry case).