Tannus Armour Foam Insert Tubeless 27.5"

Armour Tubeless displaces the small impacts but also offers a spring-like rebound for a smooth yet playful ride. Proven to be the insert of choice by Professional Racers, Red Bull Rampage Athletes, Dirt Jumpers, Enduro Racers, Weekend Warriors, and the like. Fits: 2.1-2.6". 3% Faster Rolling resistance then riding without an insert.