Wheels Manufacturing replacement hollow quick-release rear axle, 10 mm x 1 mm thread, 141 mm long. Made from aircraft-quality 4130 alloy steel that is heat-treated for strength without brittleness. Features: Aircraft-quality 4130 alloy steel, heat-treated Rolled threads for easy assembly of cones and locknuts Hollow axle for quick-release skewers Fits many Shimano and Japanese rear hubs with 130 mm spacing Specifications: Size: 10 mm x 1 mm x 141 mm Quantity: 1 axle per bag