P Zero SmarTube Evo Valve:Presta Med 41-55mm New generatively designed arch and

New generatively designed arch and crown shaping increase torsional stiffness by 20% over 34 while minimizing weight increase

Full fender compatibility using custom stealth stay bosses (sold separately)

Flip flop design allows unit to be mounted to either the left or right side

But without pieces like our Neoprene Toe Covers

6 degrees of float

P Zero SmarTube Evo Valve:Presta Med 41-55mm New generatively designed arch andThe P Zero SmarTube EVO is Pirellis latest innovation in the world of tubes, designed to improve performance in modern cycling. Made of thermoplastic polyurethane (TPU), it can save up to 70% of the weight of ordinary butyl tubing and nearly 50% of pocket space, while being stronger than butyl as a raw material. P Zero SmarTube EVO rolls 5% faster than the standard SmarTube, making your bike quicker to accelerate and climb hills, while also improving