The Specialized Presta Tube 650B x 1.75–2.4 with a 40mm valve is a dependable butyl inner tube designed for 650B/27.5" bikes. Featuring molded, individually cured construction, it delivers consistent wall thickness, excellent air retention, and smooth rolling performance for everyday riding.
Key Features:
- Fits 650B/27.5" tires with widths from 1.75" to 2.4".
- 40mm Presta valve is compatible with most standard bicycle rims.
- Molded butyl rubber construction ensures consistent wall thickness.
- Individually cured for enhanced quality, durability, and uniform performance.
- Lightweight design eliminates unnecessary material for improved rolling efficiency.
- Excellent air retention helps maintain tire pressure for longer.
- Durable butyl rubber construction provides reliable everyday performance.
- Smooth rolling characteristics enhance comfort and ride quality.
- Easy to install and ideal as both a replacement and spare tube.
Who is it for?
Mountain, gravel, adventure, and hybrid cyclists using 650B/27.5" wheels with tires between 1.75" and 2.4" wide who need a reliable, high-quality inner tube.
Specifications may differ from the photo and are subject to change without prior notice.
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