Vee Tire 20" Fat Bike Tube - 20x4.0 Fits 3.50" to 5.00" wide

Universal Fit: Heavy-Duty 20" Fat Bike Inner Tube Keep your adventure rolling with the Vee Tire Co. 20" Fat Bike Tube . Engineered to handle the high-volume requirements of modern electric and all-terrain fat bikes, this tube features a massive expansion range. While optimized for 20x4.0 tires, its high-elasticity butyl rubber safely accommodates widths from 3.50" up to 5.00", making it the most versatile emergency tube for your gear bag. Technical Performance Features Wide-Range Compatibility: A single tube covers 20-inch tire widths from 3.50" to 5.00", reducing the need to carry multiple spares for different bike setups. Heavy-Duty Butyl Rubber: Consistent wall thickness provides superior air retention and increased resistance to pinch flats during low-pressure off-road riding. Standard 40mm Schrader Valve: Compatible with all standard floor pumps, CO2 inflators, and gas station air compressors. Cross-Platform Versatility: Also compatible with 90/100-16 and 3.50/4.00-16 motorcycle-style tire and tube configurations. Comprehensive Fitment Guide This tube is the standard replacement for the fat tire e-bike category, including: Brand Compatible Models Super73 Z1, S1, S2, R, RX Series Macfox X1S, X7, X2 Rad Power Bikes RadRunner, RadExpand Lectric eBikes XP 2.0, XP 3.0, XP Step-Thru Juiced Bikes Scrambler, HyperScrambler, RipCurrent Technical Specifications Size Range: 20 x 3.50, 4.00, 4.50, 5.00 inches Metric Fitment: 90–127 x 406 Also Compatible With: 90/100-16 and 3.50/4.00-16 tire/tube sizes Valve Type: Schrader (AV 40mm) Weight: 350 grams MPN: 120AA4000A SKU: 136-130 Made in: Thailand Mechanic's Note: Fat bike tubes are large and can easily get pinched between the tire bead and the rim during installation. Inflate the tube just enough to give it a round shape before tucking it into the tire. Always check that no part of the tube is visible under the tire bead before full inflation. ?? California Prop 65 Warning