Product Description Specifications:Application:MTBAttachment:SRAM Direct MountTeeth:28 t, 30 t, 32 tGearing:1x11-speedTechnical Information:Offset:3 mm (Boost)Material:steelCompatibility:SRAM XX1 Direct Mount Boost CrankSRAM X01 Direct Mount Boost CrankSRAM X1 Direct Mount Boost CrankSRAM X0 Direct Mount Boost CrankSRAM X9 Direct Mount Boost CrankModels:28 tooth: Teeth: 28 tManufacturer Number: 11.6218.027.010 30 tooth: Teeth: 30 tManufacturer Number: 11.6218.027.020 32 tooth: Teeth: 32 tManufacturer Number: 11.6218.027.030Contents:1 x SRAM X-Sync™ Direct Mount chainring 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