CONCAVE NAILS

45NRTH uses a two-piece construction method to create a reliable, high-performance bicycle tire stud featuring a concave aluminum carbide design. The oversized concave crown creates open space and inner edges of the bowl, resulting in twice the surface area for increased traction and grip. Concave tip for durability and longevity

Aluminum base to save weight

Compatible with 45NRTH Stud Insertion Tool

We design 45NRTH tires for extreme winter cycling applications.

We do not recommend using this product with e-bikes, as the added torque and weight of the system can lead to premature housing wear and loss of studs.