Fully integrated cable routing: hides and guides brake and shift cables cleanly through the frame for a tidy cockpit, reduced cable wear, and fewer snags when riding or transporting the bike. Bearing: angular bearing design provides precise axial and radial load support for consistent, lowfriction steering and reliable handling under cornering and braking. Materials: constructed from stainless steels and aluminum alloy for a balance of light weight and durability. Corrosionresistant stainless parts resist rust in wet or coastal conditions; aluminum alloy components keep overall weight down without sacrificing strength. Steerer compatibility: fits tapered steerers from 1 1/8 inch to 1.5 inch (tapered 1 1/8'–1.5'). Designed to work with standard tapered forks and compatible headtube dimensions. Key benefits Cleaner bike setup: integrated cable routing reduces clutter and improves aerodynamics and aesthetics. Smooth, dependable steering: angular bearings maintain alignment and reduce play for safer control. Long service life with low maintenance: corrosionresistant materials and robust construction minimize wear and maintenance frequency. Lightweight without compromise: aluminum alloy lowers mass while stainless steel parts ensure strength where it matters. Performance and fit Function: provides the bearing interface and cable routing needed for a tapered steerer assembly, enabling smooth steering and internal cable management. Size: engineered specifically for tapered steerers (1 1/8' to 1.5'). Material performance: stainless steel resists corrosion and wear; aluminum alloy reduces weight while maintaining rigidity. Practical use scenarios 1) Daily commuter: install to protect cables from road grime and rain, reduce maintenance, and keep a neat handlebar area for safer urban riding. 2) Road or gravel upgrade: use when fitting a tapered fork to achieve lower stack height, improved steering feel with angular bearings, and cleaner cable routing for aerodynamic benefit. 3) Touring and wetweather riding: corrosionresistant materials and durable bearings hold up under long miles and varied conditions, reducing the need for frequent part replacement. Notes for buyers Ensure your fork steerer and headtube are compatible with a tapered 1 1/8'–1.5' assembly before . Regular inspection and basic lubrication of bearings will extend service life and maintain steering performance.