Join Date: Aug 2005
Location: San Francisco California
Bikes: Waterford 953 RS-22
Mentioned: 16 Post(s)
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The Eagle was a low end mid-seventies replacement for the Shimano Lark (the Eagle had a steel guard to protect the derailleur if the bike fell over on its drive side; the Lark didn't).
According to Frank Berto, in The Dancing Chain, the 1974 Shimano rear derailleur line-up had seven different price/quality levels. From the top, the rear derailleur names were Crane, Titlist, Tourney, 500, Eagle, Eagle SPO, and Lark.