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RIO Mainstream Bass Fly Line


RIO’s Mainstream bass fly lines are designed for general purpose freshwater fishing. The slightly heavier, easy castling line is great for a variety of fishing situations. The short, powerful front taper gives a good presentation and turnover, so it makes a great fly line for beginners.

Color: Yellow


Product Description

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.

Line Profile



Line Size30′ Head WeightFull Height WeightHead LengthTotal Length
WF6F178 grains / 11.5 grams205 grains / 13.3 grams35 ft / 10.7 m80 ft / 24.4 m
WF7F197 grains / 12.8 grams217 grains / 14.1 grams35 ft / 10.7 m80 ft / 24.4 m
WF8F225 bgrains / 14.6 grams250 grains / 16.2 grams35 ft / 10.7 m80 ft / 24.4 m
WF9F260 grains / 16.8 grams293 grains / 19.0 grams35 ft / 10.7 m80 ft / 24.4 m

Additional information




Line Weight

WF-6-F, WF-7-F, WF-8-F, WF-9-F


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WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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