Challenge - GRIFO -RACE-V-CL-Black-120tpi-700x33 The Pista's silk (seta) casing

The Pista's silk (seta) casing with more than 1

nylon-reinforced braided hose with aluminium couplers

ensuring maximum blood flow

the new Girder is a high end upgrade for any bike and rider

Challenge has developed a new technology applied to handmade construction

Challenge - GRIFO -RACE-V-CL-Black-120tpi-700x33 The Pista's silk (seta) casingConsumer Product Safety Bulletin March 13, 2019 The best all around cyclocross tyre ever created excels in wet or dry, soft packed, rocky and root infested courses, grass and more. The Grifo features fast rolling knobs and a centre section that offers excellent pedalling and braking traction.