Equip your workshop, rental fleet, or personal stock with the ultimate in reliability and performance with the SCHWALBE Presta 40 mm inner tube 50-unit pack. As a leading name in cycling, SCHWALBE delivers unparalleled quality, and this bulk offering ensures you are always prepared for maintenance, repairs, and upgrades. Specifically designed for the demanding world of modern MTB cycling, these inner tubes are the gold standard for riders who refuse to compromise on durability and air retention.Key Benefits that Set SCHWALBE ApartExperience the confidence that comes with fitting a superior product. SCHWALBE inner tubes are renowned for their exceptional ability to hold air pressure for extended periods, meaning less time spent inflating and more time enjoying the ride. This superior air retention ensures consistent tyre pressure for predictable handling and optimal performance on the trail. Each tube is subjected to a rigorous quality control process, including being inflated and inspected for 24 hours at the factory, guaranteeing that it arrives free from defects and ready for installation. This commitment to quality translates into outstanding reliability and a reduced risk of premature failure, giving you peace of mind on the most challenging terrain. This 50-unit pack offers incredible value, making it the most economical choice for bike shops, teams, and dedicated cyclists who demand the best.Main FeaturesThe SCHWALBE Nr. 21 XXL inner tube is engineered to be the perfect companion for today´s high-volume off-road tyres. Its design ensures a uniform wall thickness, eliminating the weak spots that can lead to unexpected punctures and ensuring a smooth, balanced rotation. The tube is fitted with a durable, high-quality 40 mm Presta valve (also known as Sclaverand Valve or SV), which is the preferred choice for performance cycling due to its secure seal and slim profile. The valve length is versatile, providing compatibility with a wide range of standard and semi-deep rim profiles found on modern mountain bikes. This product is specifically intended for use in the Wheels and tyres category, serving as a premium solution within the Inner tubes subcategory for all-mountain, trail, plus-size, and fat bike applications.---Brand:SCHWALBETechnical Specifications:* Model: SCHWALBE tube ´´Nr. 21 XXL´´* Pack Quantity: 50 Units* Recommended Use: MTB Cycling* Wheel Size: 27.5´´* Valve Type: Presta (SV)* Valve Length: 40 mm* 27.5x3.70 * 27.5x4.00 * 27.5x4.40 * 27.5x4.80* 90-584 * 100-584 * 110-584 * 120-584* Weight (per tube): 420g