Single ring bolts to mount Absoluteblack chainrings to the crank arms. Bolts have torx T30 interface for greater reliability.
Compatibility
. 104bcd Oval 34 / 36T
. 110/4 and 110/5 CX Oval: 38T
. 104bcd round 32 / 34 / 36 / 38T
. bashring