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RIO Mainstream Bass Fly Line

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Targeted to the overall needs of the average fly fisher.

  • Slightly heavier, easy casting lines for a multitude of situations
  • Short, powerful front taper for good presentation and turnover


Targeted to the overall needs of the average fly fisher.

RIO's Mainstream bass fly lines have been developed to meet the overall needs of the average and novice fly fisher, and are designed to optimize rod performance with slightly heavier and shorter head lengths. Every Mainstream line undergoes the same rigorous production processes and quality control standards as all RIO fly lines, and is made in RIO's Idaho manufacturing facility. Each bass line is built with a warm water coating over a supple memory-free core, for the best in performance.

Mainstream Bass - All Models

Line Size Density Line Color Sink Rate 30ft Head Weight Total Head Weight Head Length Total Length SKU
10wt Float Yellow Float 305gr (19.8gm) 355gr (23gm) 36ft (11m) 80ft (24.4m) 6-20770
6wt Float Yellow Float 178gr (11.5gm) 205gr (13.3gm) 35ft (10.7m) 80ft (24.4m) 6-20769
7wt Float Yellow Float 197gr (12.8gm) 217gr (14.1gm) 35ft (10.7m) 80ft (24.4m) 6-20766
8wt Float Yellow Float 225gr (14.6gm) 250gr (16.2gm) 35ft (10.7m) 80ft (24.4m) 6-20767
9wt Float Yellow Float 260gr (16.8gm) 293gr (19gm) 35ft (10.7m) 80ft (24.4m) 6-20768