Click to expand Tap to zoom Chaoyang 18x1.95-2.125" Tube by Chaoyang Original price $6.95 - Original price $6.95 Original price $6.95 $6.95 - $6.95 Current price $6.95 | / Quantity Add to cart Replacement inner tube fits most 18" junior BMX bikes Schraeder valve Size:18x1.95/2.125 Valve length: 33mm