SporTube Tube Options:SporTube Tube - 700 x 32 - 40mm, 48mm Presta Valve Exquisitely machined from 7075-AL

Exquisitely machined from 7075-AL

Believe it

The progressively deepening relief channel is complimented by a proper cut-out at the deepest spot

Low profile design for comfort off of the bike or when worn with jeans

SporTube Tube Options:SporTube Tube - 700 x 32 - 40mm, 48mm Presta Valve Exquisitely machined from 7075-ALThe SporTube is the most classic cycling butyl inner tube; the standard interpretation of the most used air retention system in the world. A complete range offers the size and specification for every kind of cyclist and discipline, from road cycling to urban commuting. Butyl construction Disc and rim brake compatible Black valve stem