Schwalbe SV21E Aerothan MTB Tube (27.5") Size:40mm Valve The densely knit premium fabric

The densely knit premium fabric provides an increased level of insulation as temperatures begin to drop

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Features USB convenience

This is about becoming faster and matching your motivation to the most advanced technology

The water resistant body features the a PU coated zip and 1000D nylon construction

Schwalbe SV21E Aerothan MTB Tube (27.5") Size:40mm Valve The densely knit premium fabricAerothan is a material that completely redefines bicycle tubes: extremely light, with maximum puncture protection and designed for minimum rolling resistance. The Aerothan Tube MTB is just as resistant to snake bites as it is to side wall damage thanks to the extremely robust material. In cross country and marathon, a surprisingly low weight and low rolling resistance are great advantages. Even on challenging trails, this tube never gives up on you: