Product Description The Chinook from TA is a 4-arm chainring for MTB 9-speed cranks. Specifications:Application:All MountainAttachment:104 mm bolt circle diameter, 4-armTeeth:32 T, 34 T, 36 T, 38 T, 40 T, 42 TGearing:2x9-speed, 3x9-speedTechnical Information:Material:aluminium (7075-T6)Compatibility:for MTB cranks with 104 mm bolt circleposition: centre (for 3-speed) or outside (for 2-speed)Features:black or anodised silverdesigned and produced in France Note:The manufacturer recommends a difference of 10 to 14 teeth between the smallest and largest chainrings.Manufacturer Numbers:black 32 tooth:PL-40104209-32black 34 tooth:PL-40104209-34black 36 tooth:PL-40104209-36black 38 tooth:PL-40104209-38black 40 tooth:PL-40104209-40black 42 tooth:PL-40104209-42silver 34 tooth:PL-40104202-34silver 36 tooth:PL-40104202-36silver 40 tooth:PL-40104202-40Contents:1 x TA Chinook chainring Manufacturer: Spécialités T.A. 41 bis rue de Laon 02150 Sissonne France france@specialites-ta.com