Ring Nut Lockring Tool (Star Ratchet) for DT Swiss EXP 180 240 Rear Hubs - Equivalent to HXTXXX00N8387S

***  Buy one, get one 30% off any mix of pullers and presses (applies to individual tools only, not kits) ***

In order to disassemble many of DT's ratchet rear hubs you need a special tool to remove the ring nut (sometimes called the lockring or star ratchet) from the hub body.

This version is for EXP hubs (EXP is the newest version of DT's ratchet system, launched in 2020).  We have a different tool for the lockring found in DT's non-EXP hubs, here.

Equivalent to DT Swiss part number HXTXXX00N8387S.

This sale inlcudes the tool only, not the nut itself.

Our tools can be selected either by the bearing's dimensions or by the bearing's standard reference code.

Standard references take the form of a three to five digit number, such as 688, or 6902 for example.  These codes are often provided in the bike's user manuals, or moulded onto the bearing's seal. You might see something like 6902-2RS on the seal. The first digits are the standard reference.  The second part (2RS in this case) refers to the seal type and doesn't matter for tool selection.

While the letter & numbers after the baring ref usually refer to the type of seal, you should keep an eye out for the suffix 'E', for example 698-E.  This denotes that the inner race of the bearing is extended, which will affect puller and press selection. 

Alternatively, tools can be selected by their inside (ID) and outside (OD) diameters and width (W). 

Note that each tool is specific to one bearing size and can’t be used on bearings with different dimensions.

If you need any help then please feel free to email us!  We usually reply within 1 working day.