45NRTH XL Concave Carbide Aluminum Studs: Pack of 300

45NRTH utilizes a two-piece construction method to create a reliable and high-performing bicycle tire stud, featuring a concave carbide-aluminum design. The super-sized concave crown creates open space and inside 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 the 45NRTH stud insertion tool
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