e*thirteen Direct Mount M Profile 10/11-speed Guide Ring Boost Chainline 30t Narrow Wide, Black

Step-up to better chain retention with this Guidering. Optimized tooth profiles and chamfers provide greater chain retention than standard rings. Quick Connect, dual width teeth, boost chainline Item Specifications Material Aluminum Offset 5 Defined Color Black Ring Position/TYPE Chain Retaining Single Ring Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Tooth Count 30 Direct Mount Type Direct Mount e*Thirteen Round or Oval Round Chainline/Hub Compatibility 141/148 Boost Hubs Chainline/Hub Compatibility 190/197 Hubs