Targeted Rim Reinforcement
The spoke holes adopt the integrated process of winding reinforcement and thermoplastic molding, which balances stress, reduces self-weight, and makes power output more stable and excellent.
From material selection to structural integration, every technology is developed to reduce loss and deliver performance riders can feel.
The spoke holes adopt the integrated process of winding reinforcement and thermoplastic molding, which balances stress, reduces self-weight, and makes power output more stable and excellent.
The micro-hook structure reinforces the bead support, ensures the stable assembly of the tubeless tire, and effectively improves the handling stability and safety of high-speed riding.
Low-friction ceramic bearings reduce rolling resistance, deliver smooth rotation and minimize power loss.
Paint-free integrated carbon finish presents pure texture with low energy consumption and eco-friendly production.
Integrated spoke interface streamlines rim shape, reduces air resistance and enhances structural rigidity.
One-piece aero carbon hub and spoke structure with anti-loose design boosts tensile strength and power transmission efficiency.
CT scanning and professional stiffness tests verify wheel structure quality and reliable riding performance.
High-strength carbon spokes reduce rotating mass while improving acceleration and power transfer.
A precise ratchet mechanism delivers fast engagement and dependable torque transfer.
Long-term experience in carbon-fibre research, structural design, and precision manufacturing begins to take shape.
A wheel brand begins with a clear purpose: finding a better balance of performance for real-world riding.
Performance is not the victory of a single metric. It is the precise coordination of materials, structure, engineering, and the realities of the road.
PHi (Φ) is a timeless expression of order and balance in nature—and the starting point for how PHi approaches high-performance wheels.
At PHi, performance is the coordination of low weight, stiffness, aerodynamics, comfort, and reliability.
PHi began taking shape in 2023, built on carbon-fibre R&D and manufacturing expertise refined continuously since 2007.
From rim profile and carbon layup to spoke architecture and connection design, every detail shapes power transfer, acceleration, and high-speed handling.
Across carbon rims, low-drag hubs, VONOA carbon spokes, and integrated carbon structures, PHi works to reduce excess weight, deformation, rolling resistance, and airflow disruption.
We do not chase a single extreme. We seek better answers for real-world riding.
PHi wheels on real bikes and real roads—shared through our riding community.
