Aeron Super Lite Race AL 650b/700c TPU Tube Super Light. Super Fast. Super Small. The Aeron Super Lite Race AL TPU tube is engineered for gravel and CX racers seeking the perfect balance of speed, puncture resistance and ultra-lightweight performance. Its highly elastic shell deforms under impact to provide extreme durability, while the featherweight design is up to 78% lighter than standard butyl tubes. This makes it a genuine race-day spare rather than a bulky backup. Featuring a high quality aluminum Presta valve with a removable valve core, it is fully compatible with deep-section rim extensions. Engineered for maximum performance, the Super Lite Race AL tube features a low-rolling resistance construction that ensures you reach the finish line faster. Features TPU construction, Protection Level 2 race-oriented tube with lower rolling resistance and better air retention than comparable butyl tubes, up to 78% lighter than butyl in the CX/Gravel category Aluminum Presta valve with removable core compatible with valve extenders for deep-section rims; threaded shaft ensures optimum grip for the pump head Compatible with 650B and 700C wheels, 32-52mm tire width covers the full range of gravel, adventure, and cyclocross rubber in either wheel size Available in 42mm and 65mm valve lengths 42mm for standard rim beds, 65mm for mid-depth rims without an extension Micro-packed size compresses far smaller than butyl, making it a practical spare for tubeless riders or anyone running a minimalist kit Specifications Valve Type Presta Valve Valve Length42mm / 65mm Wheel Diameter650B / 700c Compatible Tire Width32-52mm Material TPU Level 2 Race/ Maximum Performance Weight33g (Presta Valve: 42mm), 34g (Presta Valve: 65mm)Intended Use Gravel, CX | Aeron | Superlite Race Al 650B/700C Tpu Tube 650/700X32-52, 42Mm | Rubber