Blackspire snaggletooth narrow wide chainring sramthis highly efficient narrowwide chainring will grip the chain perfectly prevent chain drops and will increase confidence you have in your bikes drivetrain this version of this chainring is compatible with the direct mount engagement on the sram gxp and bb30 long spindle cranksets with a removable spider featuresmaterial cnc 7075 t 6compatible sram direct mount cranks onlythickness 8mmspeed 1011 speedbuyblackspire componentsfrom chain