Product Description ONE DM by TA is a single chainring for direct mounting on SRAM XX1, X01, X0, X1, X9 and GX cranks with removable spider. Also allows conversion from 3x or 2x to 1 x 10/11/12-speed. Specifications:Application:Cross Country, Enduro, All MountainMount:SRAM Direct MountTeeth:26 T, 28 T, 30 T, 32 T, 34 T, 36 TGearing:1x10-speed, 1x11-speed, 1x12-speedTechnical Information:Offset:0 mmChainline:49 mmMaterial:aluminium (7075-T6)Compatibility:SRAM direct mount cranks: XX1 EagleX01 EagleGX EagleXX1X01X0X91400 X1GX135 mm or 142 mm over locknut dimensionFeatures:Single chainring for direct mount installationalternates between narrow and wide teethmatt finish Note:Chainrings with an older production date have " 10/11" printed on them, chainrings with a more recent production date have " 10/11/12" printed on them. However, there is no difference in compatibility (10- to 12-speed).Manufacturer Numbers:26 tooth:PL-01000309-2628 tooth:PL-01000309-2830 tooth:PL-01000309-3032 tooth:PL-01000309-32 sold-out34 tooth:PL-01000309-34 sold-out36 tooth:PL-01000309-36Contents:1 x Manufacturer: Spécialités T.A. 41 bis rue de Laon 02150 Sissonne France france@specialites-ta.com