Easily top up tubeless bicycle tires with sealant through the valve using these 3D printed funnels. No more spills or blocked syringes! I provide funnels for both Schrader and Presta valves.
![](https://arcady.genkin.ca/wordpress/wp-content/uploads/2021/09/Shrader-and-Presta-Funnels-v10.png)
I took a stab at a tubeless set-up for my Krampus wheels. Here is what I used: