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OPENBuy at racycles.com
OPENDerailleur
U.P./U.P.P.E.R. Rear Derailleur Hanger
Part$20
Frame-specific hanger for OPEN U.P. and U.P.P.E.R. framesets. Designed as an intentional weak point to absorb impact and protect the derailleur and frame in a crash. Precise geometry match ensures correct derailleur alignment and reliable shifting—mismatched h
Specs
CompatibilityOPEN U.P./U.P.P.E.R. frames
