SRAM PG-1231 XPLR cassette

This 12-Speed 11-44t Provides 2x Range In A 1x Package And Fits On A Traditional 11-Speed Driver Body Specifications: - Item Type: Cassette - Item Name: Pg-1231 Xplr - Series Name: Xplr - Speed: 12 Speed - Ratio: 11-12-13-15-17-19-21-24-28-32-38-44 - Teeth: 11-44t - Sprocket Material: Nickel Chrome Plated Steel - Technology: Power Glide - Body: Sram/Shimano 11 Speed Only - Group Comp - Sram: Xplr - Other: For Use With Xplr 1x Rear Derailleurs, Compatible With Flattop Chains