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Proven 6902 cartridge bearings were selected due to their large ball diameter and durability
These chainrings are optimized for Gravel
Item Specifications Color Brown Defined Color Brown Flange No Length 133 Lock On No Shape Round Weight 54
XTR BR-M988
Ritchey Compression Plug Compression Plug UPC: 796941331593
Wolf Tooth Performance Headset - EC34/30 Lower, Ultraviolet Purple chain-tool Proven 6902 cartridge bearings wereWolf Tooth Performance Headsets are machined out of aircraft grade aluminum and assembled with Black Oxide Cartridge Bearings, balancing quality and price. Black Oxide Bearings are made from chromium steel for high load capacity and durability Custom molded dual lip seal on the crown race to protect lower bearing in the toughest conditions Item Specifications Bearing Type Black Oxide Steel Color Ultraviolet Purple Crown Race 30 Lower Stack Height 12.
