Compared with conventional pawl systems, the larger contact area distributes drivetrain loads more evenly, reducing localized stress while improving durability, engagement stability, and pedaling efficiency under demanding riding conditions.
ARC's patented one-piece ratchet design integrates the engagement structure into a single precision-engineered component. The system increases structural rigidity, reduces overall weight, and improves machining accuracy. The simplified construction also enhances long-term reliability while making assembly and maintenance more efficient.
| # |
Type
|
Details
|
|---|---|---|
1 |
Hub Shell Material
|
AL6061-T6 aluminum alloy（100% Forging）
|
2 |
Axle Material
|
AL7075 aluminum alloy（100% Forging）
|
3 |
Freehub Body Material
|
AL7075 aluminum alloy（100% Forging）
|
4 |
End Cap Material
|
AL7075 aluminum alloy（100% Forging）
|
5 |
Disc Brake Interface
|
Road Bike Center Lock Disc Brake Hub for Carbon Spokes
|
6 |
Hole Count
|
F-20H(1:1)/R-20H(1:1)；F-21H(2:1)/R-21H(2:1)
|
7 |
Hole Diameter
|
T-shaped head * Dual-strip compatible spoke holes, compatible with 3.3MM and 5.2MM width carbon spokes
|
8 |
Surface Color
|
Precision polishing + sandblasting anodized black finish
|
9 |
Freehub Body Color
|
Anodized Black
|
10 |
Bearing Configuration
|
S&S steel bearings (standard), ENDURO, CeramicSpeed
|
11 |
Hub Structure
|
36T Ratchet/54T Ratchet
|
12 |
Freehub Body Standard
|
Shimano HG/Shimano Microspline(MS)-Road/SRAM XDR/Campagnolo Next 3/Campagnolo 11/12S
|
13 |
O.L.D.
|
F-12*100mm / R-12*142mm
|
14 |
Weight
|
281.1g±5g
|
Engineered with high-strength aerospace-grade aluminum and an ultra-lightweight, multi-configuration carbon-spoke optimized structure to meet the demands of modern road disc brake wheel builds.
✓ High-Strength Aerospace-Grade 7075 Aluminum Alloy Axle & Freehub Body
The axle, freehub body, and end caps are manufactured from aerospace-grade AL7075 aluminum alloy, enhancing structural stiffness and durability while maintaining an exceptionally lightweight construction.
✓ 1:1 & 2:1 Carbon-Spoke Configurations
Both 1:1 and 2:1 spoke configurations are available, allowing greater flexibility in wheel building. The different spoke layouts can be selected according to wheel stiffness, spoke tension distribution, and specific wheelset design requirements.
✓ T-Head & Dual-Spoke Compatible Interface
The dedicated spoke holes are compatible with T-head and dual-spoke configurations, supporting different carbon spoke designs while providing a precise and secure connection between the hub and spokes.
✓ 3.3mm & 5.2mm Carbon-Spoke Compatibility
The optimized spoke interface supports carbon spokes with widths of both 3.3mm and 5.2mm, providing broader compatibility for different carbon-spoke wheel systems and custom wheel builds.
✓ Ultra-Lightweight 280g Hubset Construction
A highly optimized hub structure combined with lightweight aerospace-grade aluminum components keeps the complete hubset weight to just 280g, helping reduce rotational mass for quicker acceleration and responsive road performance.
✓ Multiple Freehub Standards Available
HG, MSR, XDR, N3W and CP options support a wide range of road drivetrain configurations, providing flexible compatibility for different high-performance road wheelset applications.
✓ Road Disc Brake Compatibility
Designed for 12×100mm front and 12×142mm rear thru-axle standards, providing compatibility with modern road disc brake wheel systems.
No. 112, Dongting North Road, High-tech Zone,Taicang,Jiangsu,215400,China
+86 18262669919
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