Product Name: STONE Round 104BCD 1X Chainring
Material: Aluminum 7075-T651, from Aleris USA
Color: black anodized
Size: 104BCD
Fit for: for Shimano M590/610/615/670/675/770/785/780/970/980/820/430 for SRAM Most 30s Crank X0/X5/X7/X9, IXF
Thickness: 4MM
Speed: 9/10/ 11 /12speed,1xspeed Support both Shimano and Sram 12 speed system
Hardness: 150HB
Process pricision: 0.03mm
Package Contents: 1 x bike Chainring, 4 bolts
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