Product Description
Enjoy smooth, reliable wheelchair mobility with the Schwalbe Marathon Plus Evolution HS440 24" x 1-3/8" (37-540) Tires, designed to combine the comfort of pneumatic tires with advanced puncture protection. Featuring Schwalbe's SmartGuard™ technology, these wheelchair tires provide an additional layer of defense against punctures while maintaining comfortable rolling performance for everyday use.
Each tire features a 5mm thick SmartGuard™ protective layer made from highly flexible special rubber positioned beneath the tread. This layer helps protect against embedded objects, sharp debris, and punctures without sacrificing the cushioning benefits of an air-filled tire. The 2Grip™ smooth sidewalls provide a hand-friendly surface when pushing, while Schwalbe's Black'n Roll™ compound, available on black tread models, helps prevent unsightly black marks on indoor floors.
✅ Compatibility
• Compatible with wheelchair wheels designed for 24" x 1-3/8" (37-540) tires.
• Suitable for manual wheelchairs requiring a 540mm bead seat diameter.
• Standard Inner Tubes: Available as an optional selection when ordering.
• Thorn-Resistant Inner Tubes: Available as an optional selection for additional puncture protection.
• Solid Urethane Inserts: Available as an optional alternative to pneumatic inner tubes.
• Verify your existing tire size and rim compatibility before ordering.
Features
• SmartGuard™ Puncture Protection: 5mm thick flexible rubber layer beneath the tread helps protect against sharp objects and punctures.
• Schwalbe Marathon Plus Evolution Design: Combines pneumatic tire comfort with enhanced puncture resistance.
• 2Grip™ Smooth Sidewalls: Hand-friendly sidewall construction allows smoother hand contact during wheelchair propulsion.
• Black'n Roll™ Compound: Black tread versions are designed to minimize black marks on indoor flooring.
• Pneumatic Tire Construction: Provides air-filled cushioning for comfortable everyday wheelchair mobility when used with compatible inner tubes.
• 85 PSI Maximum Pressure: Designed for inflation up to the specified maximum pressure.
• Optional Inner Tubes: Choose standard or thorn-resistant inner tubes when ordering.
• Optional Solid Urethane Inserts: Available for customers seeking a non-pneumatic tire configuration.
• Multiple Tire Configurations: Customize your tire setup using the available product options.
Specifications
• Brand: Schwalbe
• Model: Marathon Plus Evolution
• Tire Size: 24" x 1-3/8"
• ETRTO Size: 37-540
• Bead Seat Diameter: 540mm
• Tire Construction: Pneumatic
• Puncture Protection: SmartGuard™
• SmartGuard™ Thickness: 5mm
• Sidewall Technology: 2Grip™
• Tread Compound: Black'n Roll™ (Black Tread Models)
• Maximum Inflation Pressure: 85 PSI
• Optional Accessories: Standard Inner Tubes, Thorn-Resistant Inner Tubes, or Solid Urethane Inserts
• Quantity: Set of 2 Tires

California Proposition 65 Warning
⚠️WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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