45NRTH XL Concave Carbide Aluminum Tire Studs - Pack of 300 CheckoutSpec= 10-Speed Outer Compatible with 160mm and 140mm

Compatible with 160mm and 140mm brake rotors

Magnetic head with twisting collar to keep out dirt and debris

6 Stack 10mm Upper/Lower Upper Color Black Weight 43g Type Upper S H I S ZS44/28

Concave shaping on the bottom tucks and routes the housing to be out of the way

Enhanced with Ratchet EXP driver technology using fewer parts while providing greater reliability and easier maintenance

45NRTH XL Concave Carbide Aluminum Tire Studs - Pack of 300 CheckoutSpec= 10-Speed Outer Compatible with 160mm and 140mm45NRTH 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