Alpha Road Series – Supreme Edition Carbon Road · Gravel Rims

In the relentless pursuit of carbon fiber bicycle rim innovation, NEXTIE continues to break boundaries. The Alpha Road Series represents our top-level carbon road and gravel rims, available in four models: Alpha 40, Alpha 50, Alpha 45G, and Alpha 55G. Each model shares the same core technologies while offering different rim heights to suit various riding styles.

Model	Rim Height	Weight	Internal Width	Rim Type
Alpha 40	40mm	290g	23mm	Road
Alpha 50	50mm	325g	23mm	Road
Alpha 45G	45mm	330g	25mm	Road · Gravel
Alpha 55G	55mm	355g	25mm	Road · Gravel

All Alpha Road Series rims are 700C (622mm BSD).

For top-level road bike rims, it is different from mountain bike rims. Light weight is not the primary goal for road rims. The goals of road rims are to achieve a balance between optimizing the weight of the rim and ensuring a certain rotational inertia, excellent dynamic balance, sufficient stiffness to make the rim achieve a smaller deflection, better wind-breaking performance to increase riding speed, and greater strength. The newly launched Supreme Edition Alpha 40, 50, 45G and 55G carbon road or gravel bike rims embody our revolutionary solution, incorporating multiple core technological innovations.

[Alpha 40] Supreme Edition Carbon Road Rim 40mm 290g

[Alpha 50] Supreme Edition Carbon Road Rim 50mm 325g

[Alpha 45G] Supreme Edition Wide (25mm Int) Carbon Road · Gravel Rim 45mm 330g (Advanced Single-Point)

[Alpha 55G] Supreme Edition Wide (25mm Int) Carbon Road · Gravel Rim 55mm 355g (Advanced Single-Point)

Core Innovations

1. Advanced Single-Point (ASP) Reinforcement – The Core of Alpha Series

We specially designed the rim shape at the spoke hole position, developed the advanced single-point reinforcement technology specifically for Alpha Road Series, which results in rims that are lighter and stronger, 290g for Alpha 40 and 325g for Alpha 50 only. At the same time, this new design gives us more maneuverability, distributing the weight more toward the edge of the rim, thereby increasing the rotational inertia of the rim, which plays an important role for a top-level road bike rim.

2. Material Breakthrough: Toray T1100 + M46J Aerospace Grade Carbon Fiber, Further Improving Performance.

Alpha Road Series pioneers the use of Toray T1100 and M46J aerospace-grade carbon fiber as its main structural material, making rim much stronger. This is the first time we apply "M-series" carbon fiber materials to manufacture bicycle rims. As we know, the terms "T-series" and "M-series" refer to classifications of Toray carbon fibers, specifically T-series for tensile strength and M-series for modulus (stiffness). M46J has better stiffness performance than T-series like T800, T1000 or T1100. The addition of M46J materials can effectively improve the rotational deflection and stability of the wheels.

3. Newest Layer-up Structure: All-Wrapping Technology & Optimize Wheel Weight Distribution to Improve Wheel Rotation Inertia.

We reduce the weight of Alpha Road Series rims by the advanced single-point reinforcement design on the spoke hole side and materials improvement. On the rim bed side, we apply the latest layer-up structure to optimize weight distribution, which results in the high improvement of rim's rotational inertia. At the same time, all-wrapping technology (AWT) for main carbon fiber structure applied on Alpha Road Series further improves the stability and stiffness. AWT ensures the integrity of the carbon fiber material, thereby ensuring the rim's stability and stiffness. AWT is also applied on our road bike rims of Ripple series and Ocean series.

4. Highly Strict Technical Test Methods — 110J (UCI test condition).

We applied the UCI test conditions to test Alpha Road Series carbon rims. The impact test result reached 110J for Alpha 40, 50 and 55G, and 120J for Alpha 45G. All results are much higher than the UCI's qualified strength standard for road bicycle rims. This strength performance is almost close to ASTM Classification Condition 4. IMPACT TEST VIDEO.

Beyond these core innovations above, Alpha Road Series carbon rims incorporate numerous advanced manufacturing techniques including precision carbon fiber cutting, optimized mold materials, refined production processes and wheelset temperature test under 80 ℃ for 4 hours - collectively establishing Alpha Road Series carbon rims as the ultimate road bike competition-grade product.