Keep pushing power!
The cassette (freewheel) body is THE essential part of the hub that transfers your power to speed. Because this part in the rear wheel is constantly in motion and is therefore subject to wear, it is wise to replace the cassette body over time.
Because the FFWD wheels have been built with different types of hubs over the years, we have a few different options for the FFWD and DT Swiss hubs available.
Not quite sure which cassette body you need for your hub? Check the overview over and find out which cassette body is suitable for your wheel!