Cuschore E-MTB is specifically designed for the increased weight and impact forces of an E-MTB. With maximum impact protection and durability, you'll ride more laps with less fatigue, and less worry.  Fluted sidewall on the E-MTB insert provides a progressive feel: the harder you push the more support you'll feel.Enhanced profile engineered for he weight and forces of an E-MTB.Imapact AbsorptionRim Protection/Flat PreventionUnrivialed DurabilityFlow Channels engineered to increase air and sealant distribution to the main ryre chanmber.How It WorksNot all tyre inserts are created the same.CushCore is no ordinary tyre insert and is based on a new concept, tyre suspension. Any suspension system has a spring and a damper, and with CushCore, pressurised air in the tyre is the spring and the CushCore tyre insert is the damper.Like traditional suspension, a constant damping force wouldn't work. It has to be dynamic. Suspension should be supple on small bumps but firm on the big hits.CushCore