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 SizeDensityLine ColorSink Rate30ft Head WeightTotal Head WeightHead LengthTotal LengthSKU
10wtFloatYellowFloat305gr (19.8gm)355gr (23gm)36ft (11m)80ft (24.4m)6-20770
6wtFloatYellowFloat178gr (11.5gm)205gr (13.3gm)35ft (10.7m)80ft (24.4m)6-20769
7wtFloatYellowFloat197gr (12.8gm)217gr (14.1gm)35ft (10.7m)80ft (24.4m)6-20766
8wtFloatYellowFloat225gr (14.6gm)250gr (16.2gm)35ft (10.7m)80ft (24.4m)6-20767
9wtFloatYellowFloat260gr (16.8gm)293gr (19gm)35ft (10.7m)80ft (24.4m)6-20768
5 models available