Product Description Specifications:Application:All Mountain, Cross Country, EnduroMount:SRAM Direct MountTeeth:28 T, 32 T, 34 TGearing:1x11-speedTechnical Information:Offset:3 mmMaterial:aluminiumCompatibility:SRAM XX1 Direct Mount CrankSRAM X01 Direct Mount CrankSRAM X1 Direct Mount CrankSRAM X0 Direct Mount CrankSRAM X9 Direct Mount CrankTechnology:X-Sync™ X-Sync™ 1x chainrings by SRAM provide the highest performance and durability. Long SRAM X-Sync™ tooth edges grip the chain earlier than standard triangular teeth. The sharp and narrow tooth profile and the rounded bevelled edges support the chain guide. To guarantee the best possible performance for muddy terrain, X-Sync™ chainrings have recesses for the inner chain links and rollers to remove dirt and mud. German-made X-Sync™ chainrings are an important part of SRAM 1x drivetrains. Manufacturer Numbers:28 tooth:11.6218.018.01632 tooth:11.6218.018.01834 tooth:11.6218.018.019Contents:1 x SRAM direct mount Boost chainring3 x SRAM bolts for spider Manufacturer: SRAM LLC 1000 W. Fulton Market 4th Floor Chicago IL 60607 USA info@sram.com Distributor: SRAM Europe Sales and Services B.V. Paasbosweg 16 3862 ZS Nijkerk Netherlands info@sram.com