Eclat got in touch with the best inner tube manufacturer and sourced a tube, which they felt was the perfect blend of quality, construction, and durability. They then widened that tube up to allow it to be compatible with todays 2.40 and larger tyres. They decided to use their own full-length steel valve which is much stronger and more resilient to damage and the threaded lock ring included allows you to install and inflate the inner tube with way more ease and ensures that the valve is always fully seated and installed correctly.