45NRTH XL Concave Carbide Aluminum Tire Studs - Pack of 300 CheckoutSpec= 12x157 SB Won’t dry out or ball

Won’t dry out or ball up

Shoesize: 36-52

Saddle: Fizik Argo Vento R3 (140mm)

4130 CroMoly axle and stainless cones

Carbotecture radial master and handlebar clamp

45NRTH XL Concave Carbide Aluminum Tire Studs - Pack of 300 CheckoutSpec= 12x157 SB Won’t dry out or ball45NRTH 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 Quantity Pack Of 300