DescriptionBrand Name : DJC ComponentsOrigin : Mainland ChinaMaterial : AluminumCategory : Chain WheelUse : BMX,Mountain Bikes,Road BicyclesModel Number : STONE BCD 76 xx1Color : blackBCD (PCD) : 76mmMaterial : Aluminum 7075-T651Mode : Roundtooth : 30t 32t 34T 36T 38T 40tWeight : 51g 34Tfor old model Sram XX1 crankset only. other 76BCD not work.for old model Sram XX1 crankset only. other 76BCD not work.for old model Sram XX1 crankset only. other 76BCD not work.for old model Sram XX1 crankset only. other 76BCD not work.2 adjacent bolts distance is 49.0mm; 62.4mm; 53.9mm.2 adjacent bolts distance is 49.0mm; 62.4mm; 53.9mm.2 adjacent bolts distance is 49.0mm; 62.4mm; 53.9mm.Measure it before buy.Support 9-12sTooth Max diameter(mm) Weight(g)32 T , 134 mm , 44 g34 T , 145 mm , 51 g36 T , 154 mm , 62 g38 T , 162 mm , 74 g40 T , 170 mm , 85 gPackage Contents:1 x chainring, 4 boltsNotes:Some chainrings need several days to produce, so may wait 3-5 days.for old model Sram XX1 crankset only. other 76BCD not work.for old model Sram XX1 crankset only. other 76BCD not work.for old model Sram XX1 crankset only. other 76BCD not work.for old model Sram XX1 crankset only. other 76BCD not work.2 adjacent bolts distance is 49.0mm; 62.4mm; 53.9mm.2 adjacent bolts distance is 49.0mm; 62.4mm; 53.9mm.2 adjacent bolts distance is 49.0mm; 62.4mm; 53.9mm.Measure it before buy.