Size:104BCD

Type: round / oval (based on your choice)
Color: Black
Process:CNC+Anodizing

Extended edition plus or minus tooth shape, the chain can effect better;
CNC machining integrated, intensity is more secure, appply for long time cycling;
The positive tooth corresponding chian tooth width; tooth corresponding negative chain is narow.
It can help the vehicle reduce 1kg weight.
Please determine your crank BCD specification carefully before buying.