45NRTH Concave Carbide Aluminum Studs

Concave studs provide superior grip on ice because the edges of the tip bite into the surface, whereas flat studs tend to slide. The concave shape creates a more secure connection with frozen terrain, giving you better control during cornering and braking.

No, these studs are not recommended for use with power-assist bicycles. The higher torque and increased weight of e-bikes can cause the studs to tear out of the tire casing prematurely.

Yes, for the best results and easiest installation, you should use the 45NRTH stud insertion tool. It is specifically designed to seat these studs properly into the tire pockets without damaging the carbide tip or the tire rubber.

Each pack contains 100 studs. Whether this is enough depends on your specific tire model and how many stud pockets it has, so be sure to check your tire's specifications before purchasing to ensure you have enough for full coverage.

The aluminum base is used to keep rotational weight low, which helps maintain your bike's handling. While the base is lightweight, the critical contact point—the tip—is made of durable carbide, ensuring you get the necessary bite on ice without adding unnecessary heft to your wheels.