Tubliss Nuetech TU18 TU21 Tubeless Tire System Gen 2 21" + 18" Combo Wheel MX Offroad Dirtbike 21 18 Front & Rear rotopax See application guide to know 72 7313YL See application guide to know your rear suspension type An innovative one‑piece injected dual‑compound foot shell with co‑injected hard toe protector and integrated steel shank increases rigidity and durability while still delivering a slim 12oz Exact item you will receive is pictured Breakthrough Low Pressure Capability Tubliss replaces conventional inner tubes with a small red 100 psi insert that creates two different pressure zones within the tire itself Nuetech TUbliss 21& 18 Tubeless Tire System Gen 2 Includes: Qty