Sunlite Utili-T Inner Tube – 20 × 3.50–4.00 | 35 mm Schrader Valve
This Sunlite Utili-T inner tube is designed for 20-inch wheels using very high-volume tires and a Schrader valve. These tubes are sold individually, but originate from bulk shop packaging.
Intended for ISO 406 rims, this tube is commonly used on fat-tire BMX bikes, compact e-bikes, youth fat bikes, and specialty small-wheel applications. Tubes are bulk packaged and shrink wrapped, without a retail box or header card, making them a practical, no-frills replacement option.
Key Features
• Designed for very wide 20-inch tires
• Correct fit for ISO 406 rims
• Schrader valve compatible with standard pumps and compressors
• Smooth, straight valve stem for easy inflation
• Removable valve core for serviceability
• Bulk-packaged tube, sold individually (no retail packaging)
Technical Details
• Wheel Size: 20 inch
• Tire Compatibility: 20 × 3.50–4.00
• ISO (BSD): 406
• Valve Type: Schrader
• Valve Length: 35 mm
• Valve Angle: 0° (straight)
• Valve Stem: Smooth
• Valve Core: Removable
• Wall Thickness: 0.9 mm
• Flat Fold Width: 106 mm
Packaging Note
This tube is sold as a single unit and may arrive shrink wrapped without a retail box or display card. This does not affect performance or compatibility.