Sunlite Inner Tube – 650C × 18–23 | 48 mm Presta Valve (Wheelchair Compatible)
This Sunlite inner tube is designed for 650C wheels with narrow tires and a Presta valve, and is commonly used on both bicycles and performance wheelchairs.
Built to fit ISO 571 rims, this tube is a correct replacement for 650C road bikes as well as many manual wheelchairs that use high-pressure, narrow 650C tires. The threaded 48 mm Presta valve provides added reach for deeper rims and secures with a valve nut for stable inflation.
Key Features
• Compatible with 650C bicycle and wheelchair wheels
• Designed for narrow, high-pressure tire applications
• Presta valve for precise inflation control
• Longer 48 mm valve for deeper or thicker rims
• Threaded valve stem for secure pump attachment
• Removable valve core for serviceability
Technical Details
• Wheel Size: 650C
• Tire Compatibility: 650C × 18–23
• ISO (BSD): 571
• Valve Type: Presta
• Valve Length: 48 mm
• Valve Angle: 0° (straight)
• Valve Stem: Threaded
• Valve Core: Removable
• Wall Thickness: 0.9 mm
• Flat Fold Width: 25 mm
Compatibility Note
This tube is commonly used in performance and everyday wheelchairs that run 650C tires. Always verify the ISO 571 marking on the tire sidewall to ensure proper fit.