Stren Super Knot
Diameter chart, reel capacity & backing guide

This guide covers Stren Super Knot from the 2014 US catalog: 4-20 lb in Clear and Lo-Vis Green on 220-yard spools. Super Knot is a separate monofilament from Power Knot and MagnaThin. Check an older spool's label and condition; the catalog does not confirm current stock.
- Construction
- Self-lubricating monofilament
- Listed strengths
- 4-20 lb
- Line type
- Monofilament main line
Plan the fill around Super Knot's own diameter
Super Knot is a monofilament main-line option for a straightforward, continuous connection to the lure. For a spool matching this historical range, choose a strength for the tackle and check the printed diameter before spooling. The 8 lb row is 0.012 inch, so compare its actual fill requirement with the 220-yard package rather than relying on pound test alone.
How much Super Knot will fit?
Calculated estimates, not measured fills. Stop at the reel manufacturer's fill level even if some line remains.
Stren Super Knot diameter chart
2014 US Super Knot only: 4/6/8/10/12/14/17/20 lb, Clear and Lo-Vis Green, 220-yard fillers. Diameters are the Super Knot table at left, not MagnaThin at right. No 15 lb row is inferred.
| Strength | Inches | mm | Spools (yd) |
|---|---|---|---|
| 0.008 | 0.2032 | 220 | |
| 0.010 | 0.254 | 220 | |
| 0.012 | 0.3048 | 220 | |
| 0.013 | 0.3302 | 220 | |
| 0.014 | 0.3556 | 220 | |
| 0.015 | 0.381 | 220 | |
| 0.017 | 0.4318 | 220 | |
| 0.019 | 0.4826 | 220 |
Choosing your Super Knot strength
The 4 and 6 lb rows are the lighter end of this edition. Choose strength for the tackle and conditions before considering how much extra line fits.
The 8-12 lb rows step from .012 to .014 inch. A 220-yard filler does not imply the same number of fills at each strength.
The upper steps are 14,17 and 20 lb. There is no 15 lb row in this exact chart; do not relabel 14 lb or import a later product's values.
No hands-on knot, casting or abrasion test was performed. Self-lubricating and knot-strength language is attributed manufacturer positioning, not a ReelCalc performance guarantee.
Want a guided recommendation?
Continue in the Setup WizardSame pound test, different diameters
At your selected strength
Loading diameter comparisons...
What changes with another line?
Nearby diameters in the line database
| Line | Strength | Inches | Difference |
|---|---|---|---|
| Loading line database... | |||
Backing, working line & leaders
Match the name and edition
Check Super Knot on the package and compare its diameter with this 2014 reference. A Power Knot package needs a separate source even when its test rating matches.
Budget the 220-yard filler
All eight listed strengths have the same published filler length in Clear and Lo-Vis Green. Compare that length with full-spool capacity and your planned working reserve before choosing a full fill or shorter fresh section.
Check knots under controlled load
Wet and seat an appropriate knot carefully, then test it before fishing. The catalog's self-lubricating claim does not remove the need to inspect damage or retie.
Stop at the reel's fill limit
Use even tension and the reel manufacturer's specified clearance. If backing is used for a short fresh section, keep the joining knot below the longest expected cast and reserve.
How Much Fits on These Reels?
Estimated full-spool capacity for the Super Knot strength selected above, with no backing. These are calculated examples, not physical tests or recommendations for every pairing.
Loading capacity estimates...
Super Knot questions, answered
Is Super Knot the same as Power Knot?
This source does not establish equivalence. The chart and image explicitly name Super Knot in 2014; Power Knot specifications are not transferred.
Why is 15 lb missing?
The 2014 Super Knot chart lists 14 lb and 17 lb around that part of the range. It does not list 15 lb, so that inventory row is excluded rather than relabeled.
Does self-lubricating mean a knot cannot fail?
No. That is manufacturer formulation language, not an independent guarantee. Knot choice, seating, wear and loading still matter.
Are both colors on 220-yard fillers?
Yes, the 2014 table marks Clear and Lo-Vis Green for all eight listed strengths under the 220-yard filler legend. Current stock is not established.
Can I apply this to a newer spool?
Only after checking that its exact product identity and diameter agree. A historical chart alone does not establish current formulation or package continuity.
Specifications & sources
Checked September 13, 2026 against the original 2014 Stren manufacturer catalog preserved by WesternBass. The inch chart and both color columns were visually inspected; mm are explicit conversions. Original lime-green Super Knot artwork is the same edition's p4_i48 asset. No retailer chart supplies a numeric row.
Calculations use the catalog's listed inch diameters. Published inch and millimeter values may differ slightly because of rounding.
- 2014 Stren manufacturer Super Knot chart Sole numeric authority; left-hand table and 220-yard filler legend visually checked.
- 2014 catalog edition manifest Identifies the manufacturer catalog edition and page assets.
- Original Super Knot package artwork Unmodified lime-green package asset from the same catalog.