Bicycle Crank 104BCD MTB bike 30T Chainwheel Aluminum Alloy Narrow Wide Chain ring Round Chainwheel Cycle Crankset Bicycle parts (Blue)

Description

Material:AluminumAlloy7075T6 Teeth:30TSize:104BCD Color:Black Red Blue Process:CNC+Anodizing Round Weight: 30T-- about 35g --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.