Not sure what driver you need? Check out these articles to identify which hub you have and link to the correct driver:

• e*thirteen Rear Mountain Bike Hubs (2024+)
  
• e*thirteen Rear Mountain Bike Hubs (2017-2023)

Replacement freehub bodies to fit non-Sidekick e*thirteen hubs.

3-Pawl / 6°*: This provides 60 points of engagement or a relatively low 6° engagement and high levels of reliability in high torque and heavy impact environments.

4-Pawl / 3°: This provides 120 points of engagement or a higher 3° engagement. In All Mountain, Trail, and Gravel applications, this provides long-term reliability, with the added efficiency to optimize long days of climbing and descending.

*XCX Gravel has 4-pawls, but 27 points of engagement or 13° degrees