SRAM Derailleur B-Bolt Assembly - Black - Hex Head - Includes Limit Screws - X01 Eagle 12 Speed YGroup_7033398165549 If you are in need

If you are in need of an IS(International Standard) Caliper Brake Mount then these Shimano options are an excellent choice

This clutch mechanism is perfect for 1x conversions and keeps chain slap and noise to a minimum

While they might be ok for drivetrain duties

Instruments

What does that mean

SRAM Derailleur B-Bolt Assembly - Black - Hex Head - Includes Limit Screws - X01 Eagle 12 Speed YGroup_7033398165549 If you are in needGenuine SRAM Replacement B Bolt Kits. SRAM PART # UPC Black Eagle 12 Speed Hex Head Includes Limit Screws 11. 7518. 076. 010 710845785375 Gunmetal Grey 11 Speed Torx Head Includes Limit Screws 11. 7518. 014. 000 710845718397 Gunmetal Grey 7 Speed DH Torx Head 11. 7518. 033. 000 710845749636 12 speed B Bolts fit any 1x12 speed SRAM Derailleur 11 speed B Bolts fit any 1x11 speed SRAM Derailleur 7 speed B Bolts fit any 1x7 speed SRAM Derailleur