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Free Hub Body and Cassette: A Comprehensive Guide

by Nepest Sports 03 Aug 2023 0 Comments

First, let's discuss what a freehub is, in essence, it plays an important role in fixing the rear gear. A freehub incorporates a drive mechanism that allows coasting or reversing on the drivetrain. The cassette is attached to the free center by a threaded locking ring. Special tools are required to connect freehub and cassette.

Different brands of kits

Shimano HG (Hyper-Glide)

This is the most common hub design, created by Shimano, a Japanese company, for HG-specific rear cogs offering 8, 9, 10 and 11 speed options. Both Shimano and Sram have rear cogs designed specifically for HG.

Shimano HG (Hyper-Glide)

Shimano MS (Micro Spline)

These are Shimano's latest 12-speed rear cogs designed for 10 gears. The new hub body system is called Micro Spline, which is only available for Shimano SLX M7100, XT M8100 and XTR M9100.

Shimano MS (Micro Spline)

Campagnolo (Campy)

This is an Italy brand that utilizes splines like HG to hold rear cogs for gears with at least 11 teeth, and it can also be installed with? specific rear cogs for 8, 9, 10, 11 and 12s.

Campagnolo (Campy)

Sram XD

XD is Sram's widely produced hub body, which can be used in gears with less than 11 teeth. XD is most commonly used on mountain bikes, but it is also suitable for gravel bikes, road and off-road bikes. XR drive is suitable for 11s and 12s drive trains with XD specific rear cogs.

Sram XDR

As the name suggests, "R" stands for “road”, which is the hub? body of the road version of the XD series. From the appearance, there is no big difference between the two. In order to match the flange spacing of the road rim, 1.85mm is processed at the connection between the freehub and the cassette. Like the XD series, XDR can also be used with less than 11 teeth. Although the XDR is suitable for road bikes, it can be paired with XD rear cogs by adding 1.85mm spacers. The XRD drive is available for 11s and 12s drive trains with XDR specific rear cogs.

Sram XDR

All in all, freehub's options are varied. Each has its own advantages. If you don't know how to pair with, you can contact info@nepestsports.com at any time. We will give you the best recommendation.

 

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