Challenge - GRIFO -RACE-V-CL-Black-120tpi-700x33 the new Girder is a

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

In simple terms

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

The GETAWAY is now launched with Xtra Protection (XP) for more endurance rides on rougher terrains

Challenge has developed a new technology applied to handmade construction

Challenge - GRIFO -RACE-V-CL-Black-120tpi-700x33 the new Girder is aConsumer 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.