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For 5 arm crank , BCD110 10-11 speed compatible
For 5 arm crank .
For 5 arm crank , 9-10 speed
for 9-10 speed , road chainring.
For 9-10 speed.
FC-CE250
FC-CE036
For 9-10 speed
10-11 speed compatible , 50t. for 34t.
Ceramic teflon treatment.
early 80’s stock
DCP system , bcd 110Â 50 for 36
OCP system , bcd 130Â 48t.
11 speed , 34 for 50t.
5 arm , 105 model , including chainring bolts.
