Tapered 1-1/8 to 1.5 Inch 7000 Series Aluminum Steerer Tube
Internal Butterfly Steerer Tube and Fork Crown Interface
Cold-Forged and Bonded Dropouts
The Box One X5 Pro Carbon Fork is the pinnacle of our Oversized Technology™ product line. The tapered 1-1/8 to 1.5 inch steerer tube has the optimal balance of stiffness, strength, and weight. Professional fork builders place every unidirectional carbon fiber strategically to optimize performance. The Box One X5 Pro Carbon Fork features an alloy 7000 series tapered steerer tube and 20mm through-axle cold-forged bonded dropouts.