The bars are different for US CA77s and UK C77s with tubular bars. Not only is the bend different, but the UK ones have the winker mounting.... I have both types to compare.
The early C77-A (pre-CA77) has different bars again, from the Dream Super Sport (model code 257)
G
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Latest Registry Entry
1965 Honda CP77 — Ulsan Metro City, Rep. Korea
Restored with original parts — Owner: J. Doe