Round-Head Carbon-Spoke Center Lock Road Hub Set

ARC MT-092F/R 21H Round-Head Carbon-Spoke Center Lock Road Hub Set

ARC MT-092F/R 21H Round-Head Carbon-Spoke Center Lock Road Hub Set

MT-092F/R

Specification

Freehub system

Spoke holes

Bearing

Clear

Inquiry

Product Details

Built for Lightweight. Carbon-Spoke Road. Performance

Designed specifically for modern road disc brake wheel builds, MT092F/R combines a lightweight hub construction with a dedicated carbon-spoke configuration. With 21-hole 2:1 drilling at both front and rear, it is engineered to optimize spoke tension balance, wheel stiffness, and load distribution for high-performance road wheel systems.

Full-Surface Ratchet Engagement

36T / 54T Ratchet System for Consistent Power Transfer

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.

Patented One-Piece Ratchet Architecture

Integrated Design for Higher Strength & Reduced Failure Risk

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.

Technical Specification

#	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	Special hub for disc brakes and carbon strips on highways
6	Hole Count	F-21H(2:1)/R-21H(2:1)
7	Hole Diameter	Special holes for round-head carbon spokes (suitable for Hongji Weiye B-type and C-type carbon spokes
8	Surface Color	Fine polishing + sandblasting anodized matte grey
9	Freehub Body Color	Anodized Black
10	Bearing Configuration	S&S steel bearings (standard), ENDURO, CeramicSpeed
11	Hub Structure	Ratchet-36T/Ratchet-54T
12	Freehub Body Standard	Shimano HG\|Shimano Microspline(MS)-Road\|SRAM XDR\|Campagnolo Next 3\|Campagnolo 11/12S
13	O.L.D.	F-12MM/100MM、R-12MM/142MM
14	Weight	357.7g±5g

Precision Materials.

Carbon-Spoke Configuration.

Engineered with high-strength aerospace-grade aluminum and a dedicated 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 a lightweight construction.

✓ 21H 2:1 Carbon-Spoke Optimized Configuration
The 21-hole 2:1 configuration is specifically designed for carbon-spoke wheel builds, helping optimize spoke tension distribution and improve overall wheel stiffness and balance.

✓ Dedicated Carbon-Spoke Interface
The round-head carbon spoke holes are designed to accommodate Hongji Weiye B-type and C-type carbon spokes, providing a precise and secure spoke interface for high-performance wheel construction.

✓ Lightweight 355g Hubset Construction
A carefully optimized hub structure keeps the complete hubset weight at just 355g, reducing rotational mass while maintaining the structural strength and reliability required for modern road riding.

✓ Multiple Freehub Standards Available
HG, MSR, XDR, N3W and CP options support a wide range of road drivetrain configurations, providing flexible compatibility for different 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.