Versatile and confidence inspiring, the Gravdal securely navigates through harsh winter conditions with steel carbide studs for added traction in icy conditions.Siping creates a more conforming lug for added traction240 Steel carbide studs tear into slick surfacesFast rolling ramped center lugs provide decreased rolling resistanceAggressive rear faces of center lugs provide excellent braking tractionNote: wheel not included. Requires tube. Fits Priority 600, Current, and Embark.