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#1 Tire Sealant Kit for Tubeless and Tubeless Ready Mountain Bike Tires!

TireJect™ MTB Tire Sealant for Tubeless and Tubeless Ready mountain bike wheel sets. TireJect MTB will permanently FIX an existing flat tire and PREVENTS flat tires. TireJect is the only MTB tire sealant that contains active sealing fibers that are uniformly distributed within the sealant for superior sealing capabilities. The fibers clot together to form a super strong aramid fiber plug while the liquid rubber bonds together for a permanent seal.

MTB Tire Sealant Features
Seal Punctures up to 3/8 inch* Permanent Seal with Liquid Rubber
Ultra Fast Sealing with virtually no air loss Extended sealant life for longer protection
Made with Super Strong Aramid Fibers & granulated rubber particles

Puncture Demo

Escaping air pressure forces rubber particles and Dupont™ Kevlar® Fiber to wedge into the puncture and the liquid rubber cures to the tire to form a permanent seal that will never leak again. This unique sealing process is what set's TireJect apart to seal and protect all areas of the tire.

Use the highest rated, most effective tire sealant on the market; Buy TireJect Mountain Bike (MTB) Kits to repair and protect your tires!
TireJect™ is Easy to Install with our Sealant Injector Tool
Remove Valve Core
Attach Injector
Pour Sealant
Inject Sealant
Re-install Valve Core
Re-Inflate Tire
Install TireJect Valve Cap
Ride or Rotate Tire
Anyone can install TireJect™ in only minutes.
Deflate the tire and remove the valve core with the included tool. Attach the Sealant Injector. Open and pour TireJect™ tire sealant into the injector body. Use the injector plunger to clear the injector. Re-install the valve core with the included tool. Re-inflate the tire and install the Red TireJect Valve Cap to easily identify the tires that have TireJect installed. Drive or rotate the tire for 5 minutes to allow the tire sealant to cover all areas of the tire.
TireJect MTB Tire Sealant Is Easy To Install
Play Installation Video
Easy installation and measurement for exact sealant levels every time with the included Tire Sealant Injector!
Pro-tip when mounting new tires:
You can also use the injector as a graduated cylinder to measure and pour sealant into the tire casing. Fold and hold the hose to the side of the injector, pour sealant into injector body and pour into tire.
What is TireJect Tire Sealant made with?
What is TireJect Tire Sealant made with?
  • Natural liquid rubber*
  • Recycled rubber tire particles
  • High strength Aramid fibers (Dupont™ Kevlar®)
  • TireJect is Made in the USA
TireJect is 100% safe for your tire, rim and valve stem
  • No harsh chemicals
  • Non-hazardous, Non-corrosive, Non-toxic
  • Will not clog the valve stem
Off-Road Tire Sealant
  • Formulated for longer life to protect off-road tires from flats.
  • Seals larger punctures up to 3/8" in off-road tires.
  • Do not use with TPMS sensors, use our On-Road Automotive Tire Sealant for Cars, Trucks, SUVs
Looking for TPMS safe tire sealant?
Use TireJect's Automotive tire sealant formula that has been designed and tested to work with TPMS sensors.
What are Aramid fibers?
Aramid fiber is a high strength synthetic fiber most commonly known as Dupont™ Kevlar®
Download the TireJect MSDS (Materials Safety Data Sheet).
*Product contains natural latex which may cause allergic reaction in some people.
DuPont™ and Kevlar® are trademarks or registered trademarks of E.I. du Pont de Nemours and Company