The Huck Norris Tubeless Puncture Prevention  is an innovative cellular foam tyre insert specially designed for mountain biking to prevent pinch punctures by adding a lightweight layer between rim and tyre. Huck Norris is the fellow inside your tyre to fight off the Bruce Leaks. It also scares off the Snake Bites and Nasty Dents. It’s your buddy to inflate the tubeless tires to give extra kick to the tyre when you want to punch it to your rims. Based on a similar idea to the foam-lined, run-flat tyre that have been used in rally car and motorcycle racing, Huck Norris puts a light foam band inside your tire that adds extra security while letting you preserve the better ride quality of thin sidewall tires on even the most demanding of DH runs. This 'DH Edition' comes in a single size to accommodate all the typical rim sizes used on downhill bikes today and also the foam is noticeably firmer/denser than that found on the standard Huck Norris belts, this does add a tiny bit of weight to the belt but a denser foam is better able to absorb the huge impacts downhill mountain biking can encounter.  Huck Norris Tubeless Puncture Prevention Features Cellular foam construction tyre insert specially designed for downhill mountain biking Prevents pinch punctures by adding a lightweight layer between rim and tyre Aids tubeless tyre set up Weighs just a mere 105g