The 240 EXP is a light, serviceable rear hub for a carefully specified custom wheel. DT Swiss combines an extensively machined shell with its Ratchet EXP mechanism, reducing the moving parts in the freehub.
The fixed inner ratchet houses the drive-side bearing, increasing the spacing between the hub bearings. A 36-tooth mechanism gives positive pickup, while tool-free access to the freehub makes routine cleaning and greasing straightforward.
Rear hub with Ratchet EXP 36
Straight-pull spoke interface
Centre Lock rotor mount
Select axle standard, drilling and cassette interface
Ratchet EXP fixes the inner ratchet in place and uses one moving ratchet. This simplifies the freehub mechanism while preserving the full-face tooth engagement that gives the hub its positive drive connection.
A wider bearing stance
The drive-side hub bearing sits within the fixed inner ratchet. That increases the distance between the hub bearings, supporting the axle and helping maintain consistent alignment through the wheel.
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