Bicycle Chainring 104/64BCD MTB Chainwheel 24T 26T 28T 32T 38T 42T 44T Double/Tr
BCD:104mm(38T),64mm(26T). BCD: 104mm(32/42T),64mm(24T). Feature:special teeth profiles design is lead to the chain leave the chainring easier when variable speed happened.Secondly,because of the concave and convex design,the chain has an excessive place ,so the riding speed can be smoother.