Wide-Body Sealant Injector

The Hold Fast Wide-Body is the ultimate sealant tool that no tubeless user should live without. 

To use, slip the hose onto any Presta valve with the core removed and inject the desired amount. Both versions can be used in two different filling methods. One is to simply suck up the desired amount and plunge into your tire. Or the second is to you as a “funnel” and remove the plunger and pour in desired amount. Either way, you can’t go wrong.

To transfer old sealant, this is where you want to use the Tubeless Sealant Injector as a vacuum syringe. Pop one bead off your rim, and suck up the remaining sealant. Swap tires, then add the sealant back to your new tires using the instructions above.

The Wide Body has just over 5oz of capacity making a great one shot deal for most MTB set ups and can handle any road, gravel or cyclocross set up with ease.

We suggest using 1.7oz (50ml) of sealant per 1″ of tire width. 

The Hold Fast Sealant Injector only works with Presta valves.