Specialized 48mm Valve Stem Presta Tube 700c x 20-28mm (622mm) tent30 A waterproof and breathable DryVent

A waterproof and breathable DryVent shell serves up protection from wintry conditions of all kinds while a layer of synthetic insulation ensures you stay warm through storm conditions

Auto selecting SwitchHitter II technology

Single-speed models available in 20" and 24" wheel sizes (Additional gearing options available separately)

Replacement Seat Clamp for the Greenspeed Magnum XL (only)

Specialized 48mm Valve Stem Presta Tube 700c x 20-28mm (622mm) tent30 A waterproof and breathable DryVentOur Standard Presta Valve Tubes feature a molded method of construction that ensures a consistent thickness of butyl rubber. This means that they don't have any unnecessary weight and will roll smooth, ride after ride. Specifications: Valve Type: Presta Valve Size: 700c x 20 28mm Valve Length: 48mm stem