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Shimano Specifications
Chain (CN)
Feature Model No.
CN-IG90
CN-IG70
CN-IG51
CN-IG31
CN-HG50
IG
X
X
X
X
HG
X
UG
COLOR Pen link plate
Silver
Silver
Silver
Gray
Black
COLOR Pen link plate
Silver
Gray
Gray
Black
Black
Chromizing treatment link pin
X
X
X
X
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