SRAM XX T-Type Chainring - 36T, Shimano Steps Direct MountDesigned specifically for use e mtb drive systems, SRAM's XX T Type direct mount rings offer light weight with optimal retention performance needed for e mtb. Steel and Aluminum construction Item Specifications Color Black Silver Defined Color Silver Designed for ebike Yes Direct Mount Type Direct Mount Shimano Drivetrain Speeds 12 Material Aluminum Ring Position Type Chain Retaining Single Ring Tooth Count 36 SRAM XX T Type Direct Mount Ebike Rings