Scientific Anglers Amplitude Smooth Trout Expert Fly Line
True to line weight!
$99.95
True to line weight for general “trout rods” and delicate, precise presentations. The 2026 replacement for the old standard SA Trout Tapers.
The Scientific Anglers Amplitude Smooth Trout Expert Fly Line. True to line weight for general “trout rods” and delicate, precise presentations. The 2026 replacement for the old standard SA Trout Tapers.
The Amplitude Smooth series of lines are, simply put, some of the highest-performance smooth fly lines in the world. With up to five times less drag and eight times the durability of traditional lines, this will change the way you look at fly line performance.
* Features the revolutionary AST Plus slickness additive for superior shooting ability and increased durability
* Excels in medium-to-long distances with dry flies and smaller nymphs; wonderful on glass and bamboo
* The best, true-to-grain-weight line for casting small dry flies to picky risers
* Elongated front taper is designed for delicate presentations
* For use in moderate and cold climates
* Braided multifilament core
* Available in WF 2wt- WF 6wt
* Color is Leather/Sage Green/Buckskin
Features SA Line ID, AST + Coating, Improved Dry Tip, Welded Loops
SA Amplitude Smooth Trout Expert 2wt WF-F
* 30′ Head Weight: 80 grains
* Total Head Weight: 170 grains
* Head Length: 65 feet
* Total Length: 90 feet
SA Amplitude Smooth Trout Expert 3wt WF-F
* 30′ Head Weight: 100 grains
* Total Head Weight: 195 grains
* Head Length: 65 feet
* Total Length: 90 feet
SA Amplitude Smooth Trout Expert 4wt WF-F
* 30′ Head Weight: 120 grains
* Total Head Weight: 240 grains
* Head Length: 67 feet
* Total Length: 90 feet
SA Amplitude Smooth Trout Expert 5wt WF-F
* 30′ Head Weight: 140 grains
* Total Head Weight: 300 grains
* Head Length: 69 feet
* Total Length: 90 feet
SA Amplitude Smooth Trout Expert 6wt WF-F
* 30′ Head Weight: 160 grains
* Total Head Weight: 340 grains
* Head Length: 71 feet
* Total Length: 90 feet
You must be logged in to post a review.
Fly line grain-weight specifications
This is the official AFTMA (American Fishing Tackle Manufacturers Association) chart of fly line grain-weight specifications, based on the front 30 feet of a fly line.
Our website lists the grain weights for each line in its description. Compare that weight with the chart to see whether a particular line is true to size or overweighted.
Weight in grains for the first 30 feet of fly line
| Line Weight | Low | Target (in grains) | High |
| 1 | 54 | 60 | 66 |
| 2 | 74 | 80 | 86 |
| 3 | 94 | 100 | 106 |
| 4 | 114 | 120 | 126 |
| 5 | 134 | 140 | 146 |
| 6 | 152 | 160 | 168 |
| 7 | 177 | 185 | 193 |
| 8 | 202 | 210 | 218 |
| 9 | 230 | 240 | 250 |
| 10 | 270 | 280 | 290 |
| 11 | 318 | 330 | 342 |
| 12 | 368 | 380 | 392 |
| 13 | 435 | 450 | 465 |
| 14 | 485 | 500 | 515 |
| 15 | 535 | 550 | 565 |
Have more questions? Contact us or watch this video we made explaining the concept:
- Free shipping on orders over $50 within the continental US (UPS Ground or USPS). Orders under $50 ship for $7.95.
- Faster options: 2-Day and Overnight are available at checkout for an additional charge.
- Processing: Orders ship the same day or the next day. You’ll receive a tracking number via email once your package leaves the shop.
- Oversized items: Some large or heavy items carry a shipping charge. If so, it’s listed on the product page and added automatically at checkout.
- Back-orders: No backorders. If we don't have it, you can't buy it!
- International: Canada $29.95 (under 4 lbs) or $49.95 (over 4 lbs). All other countries $49.95 (under 4 lbs) or $69.95 (over 4 lbs).
- Sales tax: Applies only to orders shipped within Ohio.
If you need to return an item for any reason:
- Simply follow the instructions that are provided with each order.
- Send us a quick e-mail, [email protected] and / or drop a note in the return package with the following information: Your name, Order Number, Item(s) and a quick note on reason for returning.
These instructions will also be printed on the return/address form. Please note that if it has been longer than 30 days, we will need to contact you to get a credit card number in order to apply for the credit. Please make sure that we get a good phone number in that case. - Drop the item in the Mail / UPS to us and that’s it – We’ll be looking for it!
We will be waiting for the item and will issue an immediate credit to your credit card account or you may leave the money on the store account for future purchases. If we don’t hear otherwise, the refund will go back on the exact card used for the transaction. *Note: If an item was not purchased via the internet, phone or the purchase was made more than 30 days previous, we will need to contact you to secure a means of credit.
- Once we process your return, we will make a note on your “Customer Service Notes” and then drop your return/credit receipt in the mail.
- Non-defective, returned merchandise must be in re-sellable condition.
- Please make non-defective returns within 30 days of purchase – please contact us if more time has passed.
Reviews
There are no reviews yet.