Chainring in 5182 aluminium

36 teeths and under is for chainring in the second position on the triple crankset.

BCD 104mm which fits Shimano and Stronglight triple crankset

With 4 bolt holes.

BCD = draw a cirkel which runs through all bolt holes and the diameter, then you got the BCD also called ø measure.

Weight: about 53 grams.