You Need an HG 35mm Freehub Body

HG35mm and HG36.8mm freehub bodies cause confusion because they go by a wide range of nicknames. We choose to call them HG35mm and HG36.8mm because it describes exactly what you get: HG means Hyperglide, a Shimano term from the 1990s, followed by the length of the freehub splines. This means it's easy to measure your own cassette or freehub body to verify what you've got or what you need.

HG35mm is commonly known as "Shimano 10 speed" or "Shimano 11 speed mountain" but it also fits Shimano-branded cassettes going back to the 7 speed days, and extending into 11 speed Shimano mountain bike and some (but not all) 11 speed Shimano road bike cassettes. Many Sram cassettes also use an HG35mm freehub body, including most 10 and 11 speed Sram road cassettes, and NX and SX model Sram mountain bike cassettes.

Most (but not all) 11 speed Shimano road and gravel cassettes require an HG36.8mm freehub body. All Shimano 12 speed road (but not mountain bike) cassettes also need an HG36.8mm freehub body. If you're unsure which HG freehub you need, use our handy step-through guide.

HG35mm vs HG36.8mm Freehub Bodies

An HG36.8mm freehub body is identical to HG35mm other than having and additional 1.8mm on the splines.  This means that an HG35mm cassette will fit onto an HG36.8mm freehub body when a 1.8mm spacer is fitted behind the cassette.

Please note the opposite is not true:  There is no way of fitting an HG36.8mm cassette onto an HG35mm freehub body.

Dial HG35mm Freehub Body

We offer HG35mm freehub bodies in Mountain / Adventure duty with 3 internal bearings and 72 engagement points.

This freehub body works well on both acoustic and ebikes.

Dial HG36.8mm Freehub Body

As we said above, another option is using an HG36.8mm freehub body and a 1.8mm spacer - something you may want to do if using this Dial hub on a road bike. 

This road freehub body has two bearings to save weight, and 36 engagement points to reduce coasting drag.

Other Parts You Might Need

While replacing a used freehub body we suggest you also replace the weather shield as this is a consumable part. If your 2mm spacer is damaged (generally a result of a blown-up bearing or damaged freehub body) then now is the time to replace it as well.

Do I Need a New Endcap?

Situation 1: Straight swap

If you're simply fitting a new freehub body of the same type to your Dial hub you do not need to replace it the endcap.

Situation 2: Swapping inside these 4 options

HG35m, HG36.8mm, XD, and XDR freehub bodies all use the same endcap.  If you're switching from one of these freehub bodies to another then you do not need to replace the endcap.

If you're moving your Dial hubs to a different frame which uses a different hub standard then you may need to replace the endcaps.

The endcap you require will depend on your model of Dial hub, the width of the hub shell, and the type of freehub body you're using.  For more help on this please see the Dial rear hub service page.

The Dial hub is designed to be modular and work with nearly every hub "standard" by simply swapping endcaps.  For more information on these "standards" check out our Hub Width and Diameter List.

How Do I Replace The Dial Freehub Body?

This service video covers replacing and servicing the Dial freehub body

Related Videos

This service video covers compatibility of Shimano 12 speed road cassettes

Understanding Other Freehub Body "Standards"