ARC MT-052FCBRCB Carbon-Sleeve 6-Bolt MTB Hub Set 1

ARC MT-052FCBRCB Carbon-Sleeve 6-Bolt MTB Hub Set 2

ARC MT-052FCBRCB Carbon-Sleeve 6-Bolt MTB Hub Set 6

ARC MT-052FCBRCB Carbon-Sleeve 6-Bolt MTB Hub Set 3

ARC MT-052FCBRCB Carbon-Sleeve 6-Bolt MTB Hub Set 4

ARC MT-052FCBRCB Carbon-Sleeve 6-Bolt MTB Hub Set 5

ARC MT-052FCB/RCB Carbon-Sleeve 6-Bolt MTB Hub Set

MT-052FCB/RCB

Specification

Freehub system

Spoke holes

Bearing

Clear

Inquiry

Product Details

Built for Lightweight,Carbon Tube MTB

Designed for modern MTB disc brake wheel builds, MT-052FCB/RCB combines an AL6061-T6 aluminum and carbon tube composite hub shell with a reinforced 6-pawl / 3-tooth engagement system. The optimized structure reduces overall weight while maintaining efficient torque transfer, rapid engagement response, and reliable durability for trail, XC, and all-mountain riding.

36% Contact Width

6-Pawl Reinforced Engagement System with Wide Pawls

The upgraded pawl width increases by approximately 36%, creating a larger engagement surface for improved torque transfer and reduced stress concentration.

35% Load Bearing Surface

Wide Drive Ring for Greater Load Distribution

The drive ring width increases by approximately 21%, expanding the load-bearing area by approximately 35% and improving overall hub fatigue strength by approximately 30%.

Technical Specification

#	Type	Details
1	Hub Shell Material	AL6061-T6 Aluminum alloy + carbon tube（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	Mountain bike six-pedal disc brake curved head drum
6	Hole Count	F-28H/R-28H;F-32H/R-32H;F-36H/R-36H
7	Hole Diameter	14G
8	Surface Color	Anodized Black
9	Freehub Body Color	Anodized Black
10	Bearing Configuration	S&S steel bearings (standard), ENDURO, CeramicSpeed
11	Hub Structure	6 pawls 3 teeth
12	Freehub Body Standard	Shimano HG / Shimano Microspline (MS) / Sram XD
13	Quick Release Included	QR019 MTB quick release
14	O.L.D.	F-9100MM/R-10135MM;F-15100MM/R-12142MM.
15	Weight	455.2g±5g

Precision Materials.

Flexible Configuration.

Engineered with a lightweight aluminum-carbon composite hub shell and reinforced engagement structure to meet the demands of modern MTB riding.

✓ 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.

✓ 6-Pawl / 3-Tooth Freehub System with 120 Clicks
The 6-pawl / 3-tooth engagement system provides 120 clicks for rapid engagement response, helping reduce engagement delay and deliver more immediate power transfer during acceleration and technical riding.

✓ Multiple Axle Configurations
Available in F-9×100mm / R-10×135mm and F-15×100mm / R-12×142mm configurations, supporting different MTB frame and fork standards.

✓ Flexible Spoke Configurations
Available in 28H, 32H, and 36H front and rear drilling options, providing flexible wheel-building solutions for different riding styles, wheel structures, and load requirements.

✓ Lightweight 435g Hubset Construction
The optimized aluminum-carbon composite structure keeps the complete hubset weight to just 435g, reducing overall wheel weight while maintaining the structural strength and reliability required for modern MTB riding.

✓ Multiple Freehub Standards Available
HG, Microspline, and SRAM XD freehub standards are available to support different MTB drivetrain configurations.

✓ MTB Quick-Release Compatibility
Compatible with the QR019 MTB quick-release system for applicable quick-release wheel builds.