Details Upgrade your ride with the Continental 700 x 18-25mm 42mm Presta Schrader Valve Supersonic Tube – the ultimate combination of lightweight engineering, durability, and advanced performance. Designed specifically for road bikes and performance-oriented cycling, this tube enhances your cycling experience with cutting-edge materials and innovative construction. Materials & Construction: Crafted from premium butyl rubber, the Continental Supersonic Tube offers exceptional air retention, flexibility, and puncture resistance. Its seamless, mold-cured construction ensures a uniform, reliable seal, minimizing the risk of punctures and leaks while reducing overall weight for enhanced speed and efficiency. Performance & Engineering: Engineered for lower rolling resistance and optimized weight, the Supersonic Tube features a thinner material profile without compromising strength. Its aerodynamic design allows for smoother rotation, making it ideal for competitive racing or high-performance training. The 42mm Presta Schrader valve with removable core simplifies inflation and maintenance, supporting quick and effortless adjustments during rides. Components & Technology: Equipped with a threaded valve shaft and a removable valve core, this tube provides versatile compatibility with various pumps and inflators. The valve length of 41-55mm makes it suitable for a wide range of rim depths, ensuring a secure fit and optimal valve accessibility. The ISO width ranging from 20mm to 25mm accommodates road bike tires with a 622mm diameter (29″ road tires), labeled as 700 x 20-25. Style & Use Case: Ideal for road cyclists seeking a lightweight, high-performance inner tube, the Continental Supersonic excels on smooth pavement, race circuits, and gravel paths requiring reliable, low-resistance support. Its sleek design and innovative materials make it a top choice for competitive riders and serious enthusiasts who demand durability, speed, and ease of use. Key Features: – Ultra-lightweight Supersonic construction for lowered rolling resistance – Seamless, mold-cured design for superior durability and reliability – Removable valve core for easy inflation and maintenance – 42mm Presta Schrader valve suitable for a variety of rim depths – Compatible with 622mm ISO road tires (700 x 20-25) – Available in ISO widths from 20mm to 25mm for versatile fit – Designed for performance cycling to reduce weight and improve efficiency Optimize your cycling performance with the Continental 700 x 18-25mm Supersonic Tube – the perfect inner tube for racers, road cyclists, and avid riders seeking speed, reliability, and lightweight innovation. Lightweight Supersonic Tube Design: Crafted with thinner, high-quality butyl material to minimize weight and reduce rolling resistance for enhanced ride efficiency and speed on the road. Premium Construction & Seamless Finish: Features a seamless, mold-cured construction that ensures durability, consistent performance, and a smooth surface for reliable air retention and long-lasting use. Removable Valve Core & Threaded Compatibility: Equipped with a threaded valve shaft and removable valve core for easy inflation, maintenance, and compatibility with various pump heads for convenient roadside repairs. Optimized for Road Cycling & High-Performance Use: Sized for 700 x 20-25mm tires with 42mm Presta Schrader valves, ideal for competitive cycling, endurance rides, and urban commuting where low weight and high speed are essential. Versatile & Precise Fit with Multiple ISO Widths: Designed to fit ISO widths from 20mm to 25mm and ISO 622 / Road / 29″ diameters, ensuring compatibility with a wide range of road and gravel bike tires for versatile cycling applications.