Rio Mainstream Full Sinking Freshwater Fly Line
The Rio Mainstream Full Sinking Freshwater Fly Line is designed for anglers looking to get their flies down efficiently without spending a lot on gear. This line meets the needs of both average and beginner fly fishers with a focus on performance and ease of use.
- Slightly heavier and easier to cast for a variety of fishing situations
- Short, powerful front taper for better fly presentation and quick turnover
- Each line comes in 80-foot length with head lengths ranging from 36 to 42 feet
- Available in three sink rates: clear intermediate, and two faster sinking options
- Not available with welded loops
| Feature | Detail |
|---|---|
| Length | 80 feet |
| Head Length | 36′ to 42′ |
| Sink Rates | Clear intermediate, faster sinking options |
| Construction | Full sinking, slightly heavier weight |
| Loop Type | Not available with welded loops |
FAQ
What sink rates are available in the Rio Mainstream Full Sinking Fly Line?
The Rio Mainstream Full Sinking Fly Line is available in three sink rates: a clear intermediate line and two faster sinking options.
Is the line suitable for beginners?
Yes, the Rio Mainstream line is designed for novice and average fly fishers with slightly heavier weight and shorter head lengths that improve casting performance and ease of use.
What is the length of the fly line and head length range?
Each line is 80 feet in total length with head lengths ranging from 36 to 42 feet.




Angela Hodges –
I bought this line for my first time fishing in a slow-moving stream. The casting was smooth and the sink rate helped my flies reach the bottom quickly. It’s a great value for someone just starting out.
Angela Gibson –
The front taper works well for quick turnover. I used it in a variety of conditions and found it easier to cast than my previous line. The sink rate is just right for freshwater streams.
Max Abraham –
Perfect for beginners. The line is durable, easy to handle, and gets my flies down fast. I didn’t need to adjust much during my first few outings.
Emily Avery –
I appreciate the shorter head length. It gives better control and helps with casting accuracy. The intermediate sink rate works well in moderate current.