AVID RC
This is a bearing kit by Avid RC for all versions of the Xray XB4 '17, '16, '15, and the original XB4. The bearings haven't changed through out their revisions.Bearing Kit Fits
XB4XB4 '15XB4 '16XB4 '17
Includes:
6-5x10x4 Revolution4-5x12x4...