Product Description Replacement sprocket for Shimano 12-speed cassettes CS-M8100, CX-M7100 and CS-M6100 These Shimano sprockets are spare parts for the XT CS-M8100, SLX CS-M7100 and CS-M6100 12-speed cassette. These are the first five sprockets with 10, 12, 14, 16 or 18 teeth, which can be used with either the 10-45 or 10-51 gradation. The 10- and 12-tooth version is only available as a set. All sprockets are made of steel. Technical Information:Teeth:10 T + 12 T, 14 T, 16 T, 18 TGearing:12-speedMatching Gradation:10-45, 10-51Material:steelCompatibility:CS-M8100-12CS-M7100-12CS-M6100-1210-12 T, 14 T and 16 T can also be used for CS-M9100-12 (other material)Models:10-12 tooth: Type:B + DManufacturer Number:Y-1X498020 14 tooth: Type:CManufacturer Number:Y-0GX14000 16 tooth: Type:CManufacturer Number:Y-0GX16000 18 tooth: Type:FManufacturer Number:Y-0GX18000Contents:14 tooth and 16 tooth Version: 1 x Shimano XT / SLX / Deore 12-speed sprocket 10-12 tooth Version: 2 x Shimano XT / SLX / Deore 12-speed sprocket Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com