Features

• Size: 700 × 38/45 C (ETRTO 38/45-622) – fits a range of tire widths from 38 mm to 45 mm

• Material: 100% butyl rubber for superior air retention and puncture resistance

• Wall Thickness: Lightweight yet durable at 0.90 mm

• Valve: 48 mm Presta (Schrader available in some listings) valve for compatibility with most road and trekking wheels

• Weather Performance: Designed to resist both overheating and freezing, maintaining consistency in varied climates

• Weight: Approximately 146 g — balances durability with lightweight performance

Who It’s For

• Everyday Road & Hybrid Riders: Seeking dependable tubes for commuting or casual rides.

• Gravel and Touring Cyclists: Need robust, weather-resistant tubes for long-range and multi-surface adventures.

• Budget-Savvy Riders: Looking for high performance at an accessible price point.

• Workshop & Retail Environments: A solid, universal option to have in stock for frequent replacements.