Sram CrankSet GX Eagle 170MM 12 Speed Dub LunarFeatures Best value for your dollar aluminium crankset Direct mount chainring interface compatible with chainrings across the entire eagle ecosystemv Master GX colourway pairs well with cassettes and chains of any colour option Eagle technology for and precise 1x drivetrain X Sync 2 Eagle's aggressive teeth design provides better chain retention for a smoother and more efficient pedal feel.