Sole Type: The hexagon patterned tread allows for deep penetration of pedal pins and together with the Max Grip rubber compound offers exceptional levels of grip

These offer the best longevity

Materials / construction: 11 steel cogs in a loose stack with the largest 3 pinned together

Special mode: Super Dim

Updated with Super Z style

SRAM Derailleur B-Bolt Assembly - Black - Hex Head - Includes Limit Screws - GX 11 Speed Images Uploaded - Ready for Review Sole Type: The hexagon patternedGenuine 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