This is the Essentials* bearing kit by Avid RC for the Xray XB2 '24.
For the XB2 '25, a 5-gear transmission could be purchased separately, this will require (4) 3x8 additional bearings not included in this kit.
*The Essentials kit removes the bearings below that don't typically need replacing:
(4) 3X6 - Ackermann Plate
(4) 5X9 - Steering Rack
XB2C/D '24 | Essentials
XB2C/D '25 Essentials