Bike Bros. Tire Studs - Carbide Tipped Screw In
Perhaps the best winter studded tire comes from using these studs - they are more aggressive than more stock tires and much less likely to get pulled out of tires. Tungsten Carbide tipped to stay sharp as long as possible. If your tire treads aren't thick enough, these can pierce the tire's casing - though this isn't necessarily a show stopper if you run your tires tubeless. Typical setup requires between about 100 and 160 studs per tire (dependent on tread design).