BORN FROM THE SYMBOL Ф(PHi),WE PURSUE PERFECTION THROUGH THEGOLDEN RATIO.

PHi
The Golden Ratio of Performance.

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PHi: Explore the Limits of Carbon

PHi fuses cuting-edge carbon science with radical aerodynamics, striking the ultimate balance between lightness, stiffness, and speed to crati the art of motion.
ABOUT US

Carbon Technology For All

PHi: The Golden Ratio of Performance,Engineered for Performance Balance
Top-Tier Quality, Affordable Pricing, Localized Service & Paintless Eco Carbon Tech

PHi (Φ) is not a symbol we borrowed — it is a principle we engineer by.
In high-performance cycling, every gain comes with a cost:
lighter means weaker, stiffer means harsher, faster often means heavier.
PHi was created to solve this contradiction.

PHi hail from the same Xiamen manufacturing facility as the world’s leading European and American carbon wheel brands. Built with identical production lines, premium raw materials and stringent QC standards, we deliver authentic top-tier quality straight from the source. What’s more, we bring this elite-grade craftsmanship to every rider with accessible, affordable pricing and professional localized service – the perfect blend of global premium quality and tailored local support.

We believe everyone should experience the thrill of ultimate performance. Our mission is simple: to make high-end carbon fiber products, once reserved for elite athletes, available to all passionate cyclists. “Explore the Limits of Carbon” is not just our tagline; it’s our commitment to relentless innovation.

the culture

OUR STORY MAKES THE DIFFERENCE

In 2022, our adopted VONOA carbon spokes made their debut at the UCI WorldTour and Tour de France—proving their performance on the sport’s biggest stage. Today, as PHi, we carry forward this legacy: blending professional-grade engineering with everyday accessibility. Our mission? To “Explore the Limits of Carbon” and bring high-end, patent-backed carbon fiber components (including wheel sets and spokes) to every rider across Europe—without the luxury price tag.

Technical Core

Carbon flange structure: reduces connection points, improves force conduction rigidity, and acceleration response is more direct.

Full carbon fiber spokes: 30% lighter than traditional steel spokes, combined with titanium alloy fixing solutions, to achieve extreme lightweight and high rigidity.

Environmentally friendly coating-free process: retains the original texture of carbon fiber, reducing weight and reducing carbon emissions in the production process.
Rigid-to-weight ratio first: At the same rim height, we use the best aerodynamic rim design. We focus on improving the rigidity-to-weight ratio to ensure maximum efficiency when climbing and accelerating.

Acceleration ratio: Assuming that an adult male rides for 1 hour at a pedaling frequency of 110 times/minute, the PHi wheel will reduce the work loss by at least 33 meters compared to the competitior.

Why Can PHi Achieve "Carbon Equality"?

The price advantage of PHI does not stem from compromise, but from value optimization through innovative supply chain models. We abandon the traditional multi-level distribution system and work directly with local European bicycle shops to significantly reduce intermediate costs. This model allows the price of the product to be 50% lower than that of European brands with the same performance, but the quality is always benchmarked against the top standards.

Paintless Carbon Technology
Eco-Performance Dual Upgrade

1. Reduce 120-180g CO₂ emissions per pair of wheels, eliminate painting pollution, zero VOCs released, embrace green cycling

2. Save 40-60g weight per pair, lighter weight directly boosts acceleration and climbing efficiency for a smoother ride

3.Retain original carbon fiber weave texture, no coating peeling risk, 30% improved durabilityPrecision-molded one-piece forming, ready-to-use right out of the mold, no redundant processes, back to the authentic carbon fiber texture