Tubliss Tubeless Tire System Gen 2 19" & 21" Wheel Combo MX Dirtbike NEW NEUTECH GEN.2 TUBLISS TIRE SYSTEMIncludes:Qty.1 19" Tubliss System (Fits 19" x 1.85 to 2.15 Rim)Qty.1 21" Tubliss System (Fits 21" x 1.6" Rim)