Every CrankBox is full of products hand-selected by our team! CrankBox includes a variety of different performance snack and nutrition brands. You will receive 8x gels, 4x chews or waffles, and 8x single serve hydration mix packets. You also receive a 21oz CrankBox bottle, chain lube, tire sealant (enough for two tires), and a limited gear item.

For example, if you place an subscribtion order your first box will include a pair of Handske gloves. Your second box will include ESI Grips (either grips or wrap based on your cycling discipline)

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Stan's Tire Sealant - 2 Ounce Bottle

Regular price $3.50 USD
Regular price Sale price $3.50 USD
Sale Sold out


  • Pre-measured and ready to apply to one bicycle tire.

  • First choice of riders around the world for tubeless conversion and flat prevention

  • Seals punctures up to 1/4" (6.5mm) quickly

  • Stays liquid 2-7 months for long-lasting protection

  • Premium low-viscosity formula resists freezing to work in environments as cold as -20° F (-28° C)

  • Natural materials, safe for the environment

  • Can be injected through valve stems with removable cores compatible with tubes and tubular tires


The Product that Started a Tubeless Revolution. Inside this small 2 ounce bottle is a product that changed cycling. Today's tubeless systems rely on the lighter, more reliable, self-sealing performance of Stan's Tire Sealant.

The #1 Rated Tire Sealant on the Market

Just two ounces of Stan's in a converted standard tire or tubeless tire can repair punctures up to 1/4" almost instantly to keep you rolling. Longer-lasting Stan's Tire Sealant is formulated to stay liquid in tires with even thin casings for up to seven months. Arid conditions require more frequent monitoring of sealant levels, but anti-freezing agents in our special formula allow Stan's Tire Sealant to be used in temperatures as cold as -20° F. One quart will convert up to 16 tires.