SRAM XD driver replacement or Shimano driver replacement.

If you are unsure of the Generation for the driver you need, please see the list below for the specific generation dates on Borealis Fat Bikes.

1st Gen - Original Yampa

2nd Gen – Late 2014 to mid 2016 (Red / Blue / Black)

2nd Generation Drivers are no longer available. Please email service@fatbike.com to inquire about a replacement rear hub.

3rd Gen – Mid 2016 to early 2018 (Black Only)

4th Gen - Early 2018 until Present

Note: Driver only, end caps must be purchased separately.