Schwalbe BNB SV7A 20 x 1 3/8 FV 40mm

Unmatched Durability and Pressure Retention for Your Ride.

Struggling with frequent inner tube failures and constant air loss? The Schwalbe bnb SV7A 20 x 1 3/8 fv 40mm delivers exceptional reliability and long-lasting air retention to keep you rolling without interruptions. Engineered with a high butyl content and ultra-pure materials, this inner tube is factory-tested for 24 hours to ensure airtight performance. Its extreme elasticity fits multiple tire sizes, making it a versatile and trusted choice for urban riders and e-mobility enthusiasts alike.

Key Features

• High reliability proven over many years of use.
• 24-hour airtightness test guarantees superior pressure retention.
• Extremely elastic design fits multiple tire dimensions.
• Group inner tube system for versatile compatibility.
• 100% fully recyclable for sustainable riding.
• Preferred by bike specialists for consistent performance.

Technical Specifications

• Model: Schwalbe binnenband Smal 20 Inch Frans – SV7A
• Compatible sizes: 37-438, 28-440, 37-440, 28-541, 37-451
• Valve type: French (Presta) valve, 40mm length
• Material: High butyl content with exceptional purity
• Tested: Factory inflated and 24-hour airtightness tested
• Design: Group inner tube system with extreme elasticity
• Compatibility: Fits multiple tire sizes within the specified range
• Environmental: 100% fully recyclable
• Performance: Holds air pressure significantly longer than standard tubes

Frequently Asked Questions