ARC MT-051F/R 28H Boost 6-Bolt MTB Hub Set

MT-051F/R 28H Boost 6-Bolt MTB Hub Set 3

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ARC MT-051F/R 28H Boost 6-Bolt MTB Hub Set

MT-051F/R BOOST

Specification

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Product Details

Built for Lightweight Boost MTB Performance

Designed for modern trail and all-mountain wheel builds, the MT-051F/R BOOST combines a lightweight straight-pull architecture with a 6-bolt disc interface and standard 15×110mm front / 12×148mm rear Boost spacing. Its 6-pawl engagement system provides responsive pickup and consistent power transfer, while AL6061-T6 hub shells, AL7075 components, and S&S steel bearings support reliable strength and smooth rotation. With a 28H configuration, HG, Micro Spline, and XD freehub options, the complete hub set weighs approximately 258.6g.

High Engagement Pawl System

6-Pawl Single-Tooth Design for Responsive Power Transfer

The 6-pawl single-tooth engagement system provides reliable engagement and efficient power transmission. The optimized structure distributes drivetrain loads more evenly, improving engagement stability, durability, and pedaling response during demanding MTB riding.

Boost Straight-Pull Hub Architecture

Lightweight Design for Increased Wheel Stiffness

The straight-pull hub structure improves spoke alignment and load distribution, enhancing wheel stiffness and lateral support. Combined with lightweight aluminum construction and Boost spacing, it delivers a reliable solution for modern high-performance MTB wheel builds.

Technical Specification

#	Type	Details
1	Hub Shell Material	AL6061-T6 aluminum alloy
2	Axle Material	AL7075 aluminum alloy
3	Freehub Body Material	AL7075 aluminum alloy
4	End Cap Material	AL7075 aluminum alloy
5	Disc Brake Interface	MTB 6-Bolt Straight-Pull Hub
6	Hole Count	F-28H/R-28H
7	Hole Diameter	14G
8	Surface Color	Sandblasted Anodized Finish – Matte Black
9	Freehub Body Color	Anodized Black
10	Bearing Configuration	S&S steel bearings (standard), ENDURO, CeramicSpeed
11	Hub Structure	6 pawls single-tooth
12	Freehub Body Standard	Shimano HG / Shimano Microspline (MS) / Sram XD
13	O.L.D.	F-15110MM/R-12148MM
14	Weight	258.6±5g

Precision Materials.

Lightweight Boost Performance.

Engineered for modern Boost MTB wheel builds with a lightweight straight-pull architecture, responsive engagement, and versatile drivetrain compatibility.

✓ High-Strength 7075 Aluminum Alloy Axle & Freehub Body
AL7075 axle, end caps, and freehub body provide excellent stiffness, durability, and precise fit.

✓ 6-Pawl, Single-Tooth Engagement System
Delivers responsive pickup and consistent power transfer for trail and performance MTB riding.

✓ Lightweight 258.6g Hub Set
Optimized to reduce rotating weight while maintaining a performance-focused Boost MTB configuration.

✓ Boost MTB & Multiple Freehub Compatibility
15×110mm front and 12×148mm rear spacing with Shimano HG, Micro Spline, and SRAM XD options.

✓ 6-Bolt Straight-Pull Design
28H front and rear with 14G spokes, S&S steel bearings, and a matte-black anodized finish for modern MTB wheel builds.