Anti-derailment teeth. Compatible with new generation chains, our HxR Components chainrings have been designed to withstand all your riding sessions. With teeth designed to keep your chain in place, the chainring combines strength for reliability and the sleek design of HxR Components. These teams race in the World Cup, European and national championships with the G2 Racing Project team. Compatibility: 11-/12-speed chains, as well as SRAM Eagle and T-Type chains. Standard BCD 94mm 4-arm Material: Aluminum 7075 T6 CNC Size: 30T, 32T or 34T Anodization: Black or Raw Weight: 30T: 38g 32T: 51g 34T: 66g