700c, 27-Inch & 650c

Versatile and confidence inspiring, the Gravdal securely navigates through harsh winter conditions with carbide studs for added traction in icy conditions. - Siping creates a more conforming lug for added traction - Carbide studs tear into slick surfaces - Fast-rolling ramped center lugs provide decreased rolling resistance - Aggressive rear faces of center lugs provide excellent braking traction - Wire bead (33tpi) - We design 45NRTH tires for extreme winter cycling applications. We do not recommend this product be used with power assist bikes as the additional torque and system weight can lead to pre-mature casing wear and stud loss.