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STONE 104BCD Single Speed Chainring
Size: 104BCD Round
Fit for : Shimano M590/M610/M615/M670/M675/M770/M785/M780/M970/M980/M820/M430
, SRAM Most 30s Crank X0/X5/X7/X9,IXF
Speed: 9/10/ 11 /12speed,1xspeed, Support both Shimano and Sram 12 speed system
Tooth: 30-50T
Thickness:4MM
Color: black anodized
Hardness: 150HB
Material: Aluminum 7075-T651, from Aleris USA
Process pricision: 0.03mm
Package Contents:
1 x bike Chainring, 4 bolts
Tooth Max diameter(mm) Weight(g)
32 T , 138 mm , 39 g
34 T , 146 mm , 51 g
36 T , 154 mm , 57 g
38 T , 162 mm , 61 g
40 T , 170 mm , 71 g
42 T , 178 mm , 77 g
44 T , 186 mm , 86 g
46 T , 194 mm , 102 g
48 T , 202 mm , 108 g
50 T , 210 mm , 119 g
