Convertible spider design for different chainring and chainline configurations Thick thin tooth design for maximum chain engagement Direct mount, forged then CNC machined AL7075 chainring Hollow forged AL7050 crank arms Fits Shimano and SRAM 11-12 speed system 30mm chromoly spindle 175x32 392EVO BLK Direct Mount 695g 1x11/12UPC/EAN/GTIN: 840031052766