Product Description The TA Sismic is a chainring for older Shimano XTR cranks. Specifications:Application:Cross Country, All MountainAttachment:104 mm bolt circle diameter, 4-armTeeth:32 T, 44 TGearing:3x9-speedTechnical Information:Material:aluminium (7075-T6)Compatibility:Shimano XTR 2008 - 2010 (FC-M970)Position: central (32 T) / outer (44 T)Features:milled from a blockCNC manufacturedIFS system (outer): Invisible Fixing SystemOpen Hole System (central) for easier disassemblydesigned and produced in FranceManufacturer Numbers:32 tooth:PL-41104279-3244 tooth:PL-41104379-44 sold-outContents:1 x TA Sismic chainring4 x M8 chainring bolts (only with 44 T) Weight: grey | 32 : 28 g Manufacturer: Spécialités T.A. 41 bis rue de Laon 02150 Sissonne France france@specialites-ta.com