Schwinn SW78081A Bike Inner Sealing Tube 16" (1.75'' - 2.125'') NOTE: BRAND NEW! THE BOX WAS FULLY OPENED AND INSPECTED. The Schwinn SW78081A 16-inch inner tube is a durable, self-sealing replacement designed for children?s and youth mountain bikes with 16-inch wheels. Constructed from high-quality rubber with a built-in sealing compound, it automatically seals small punctures up to 1/8 inch, reducing the risk of flats from thorns, glass, or road debris. Compatible with tire widths from 1.75 to 2.125 inches, it features a standard Schrader valve for easy inflation with common pumps. The tube?s resilient elastomer blend maintains air pressure longer and withstands repeated impacts from curbs, trails, and rough pavement. Ideal for daily riding, school commutes, or recreational use, this black inner tube offers reliable, low-maintenance performance for young riders and peace of mind for parents. Features - Self-sealing inner tube automatically repairs small punctures up to 1/8 inch - Fits 16-inch wheels with tire widths from 1.75 to 2.125 inches - Standard Schrader valve compatible with all common bike pumps - Made from durable rubber with integrated sealing compound - Designed for youth mountain bikes and recreational 16-inch bicycles - Reduces downtime from flats during rides or commutes - Maintains consistent air pressure over extended use - Easy to install?direct replacement for original equipment - Black color for clean, discreet appearance inside tire - Trusted Schwinn quality for dependable performance Specifications - Brand Name: Schwinn - Model Name: Schwinn SW78081A - Part Number: SW78081A - Product Type: Self-Sealing Bike Inner Tube - Bike Type: Mountain Bike (Youth) - Wheel Size: 16 Inches - Tire Width Compatibility: 1.75 ? 2.125 in - Valve Type: Schrader - Material: Rubber with Self-Sealing Compound - Color: Black - Product Dimensions: 11.94 x 7.11 x 5.33 cm - Item Weight: 122.47 g (0.27 lb) - Number of Pieces: 1 - Country of Origin: China Product Application This self-sealing inner tube is used by parents, bike shops, and young riders to maintain reliable performance on 16-inch children?s mountain bikes, BMX-style bikes, or neighborhood cruisers. It is commonly installed during tire replacements or as a preventive upgrade to reduce flat tire incidents on sidewalks, trails, parks, or school routes. The automatic sealing feature is especially valuable for kids who may not recognize slow leaks or lack tools for roadside repairs. Ideal for urban, suburban, and light off-road use, it extends ride time and minimizes maintenance?making it a practical choice for families prioritizing safety, convenience, and durability in youth cycling gear.