This "Power Point" stud offers outstanding light weight performance and durability for the trail, as well as on the track! This stud offers 60 degree carbide point for superior penetration and strength. The 1" diameter "Track Trapping" head size design, provides superior support, and reduces the "cookie-cutter" effect used by others that lead to track failure. Special "tapered" shank and thin penetration profile, provides rigidity that ensures traction. Standard Lock-nuts are not included.