BY

A JDM saltwater spinning series from Smith Ltd. (Japan) in the salt/sea category. The model designations BY-C734-S and BY-S744-S suggest two closely matched rods: both approximately 7'3"–7'4", both ML power and fast action, a configuration typical of Japanese light saltwater spinning, specifically suited for seabass (シーバス) fishing with lures in the 7–21g range, or inshore light jigging/plugging for smaller species. The "BY" naming and salt category placement aligns with common Smith mid-tier coastal spinning series.

Both rods are spinning action, two-piece (noted by -S suffix), built to handle PE #0.6–1.2 class braids common in Japanese light saltwater technique. ML power with fast action is the JDM standard for seabass plugging, provides enough sensitivity to work sub-surface plugs and minnows while retaining hook-set speed. Smith constructs at this tier with high-modulus blanks and Fuji or comparable guides. Detailed blank specification was not confirmed from available English-language sources.

The lineup is narrow, two models within 1" of each other in length, same power and action. The difference between the C (BY-C734) and S (BY-S744) prefix is may indicate a construction or guide variant. Both rods target the same angling style and species.