This is a optional XRAY Lightweight Aluminum 2-Speed 2nd Gear Carrier with a Factory Press Fit Ball Bearing, and is intended for use with the XRAY NT1 and NT1 009 spec.
This aluminum 2nd gear carrier is for serious racers looking for smart weight savings and optimized rotating weight. XRAY's optional lightweight 2nd gear carrier is made from 7075 T6 aluminum and has been strategically lightened compared to the standard #335520 carrier, reducing rotating weight without sacrificing strength or durability. Includes factory-pressed ball-bearing; the ball-bearing must be regularly serviced, cleaned, and oiled.
NOTE: The ball-bearing cannot be replaced once worn out.