ARC MT-084F/R 28H Straight-Pull Boost Center Lock MTB Hub Set

MT-084F/R 28H Straight-Pull Boost Center Lock MTB Hub Set

ARC MT-084F/R 28H Straight-Pull Boost Center Lock MTB Hub Set

MT-084F/R BOOST

Specification

Freehub system

Spoke holes

Bearing

Clear

Inquiry

Product Details

Built for Lightweight Boost Straight-Pull Performance.

Designed for modern MTB Center Lock disc brake wheel builds, MT-084F/R combines a lightweight AL6061-T6 aluminum hub shell with a dedicated Straight-Pull spoke configuration and Boost axle standard. With a 15×110mm front and 12×148mm rear configuration, the hubset is engineered to optimize wheel stiffness, structural strength, and drivetrain response while keeping the complete hubset weight to just 355g.

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	Disc brake straight pull drum in mountain terrain / BOOST
6	Hole Count	F-28H;R-28H
7	Hole Diameter	14G
8	Surface Color	Sandblasted anodized black
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) / Sram XD
13	O.L.D.	F-15110MM;R-12148MM
14	Weight	361.1g±5g

Precision Materials.

Flexible Configuration.

Engineered with high-strength aerospace-grade aluminum and a lightweight Boost Straight-Pull structure to meet the demands of modern MTB 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.

✓ Boost Straight-Pull Configuration
The Straight-Pull design provides a direct spoke interface and optimized load path, helping improve spoke alignment, wheel stiffness, and structural efficiency for demanding MTB wheel builds.

✓ 28H Front & Rear Configuration
The 28-hole front and rear configuration provides a balanced spoke layout for reliable wheel stiffness, load distribution, and durability across demanding trail and all-mountain riding conditions.

✓ Lightweight 355g Hubset Construction
A carefully optimized hub structure keeps the complete hubset weight to just 355g, reducing overall wheel weight while maintaining the strength and reliability required for modern Boost MTB riding.

✓ Steel & Ceramic Bearing Options
Available with S&S steel bearings or S&S ceramic bearings, providing flexible configuration options for different performance and wheel-building requirements.

✓ Multiple Freehub Standards Available
HG, Microspline, and SRAM XD freehub standards are available to support different MTB drivetrain configurations, providing flexible compatibility for modern Boost wheelsets.

✓ Boost Center Lock Compatibility
Designed for 15×110mm front and 12×148mm rear Boost thru-axle standards with a Center Lock disc brake interface, providing compatibility with modern Boost MTB wheel systems.