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Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.
The Duo Bay Ruf Seek 85S is a technical sinking lure that introduces a unique “undulating” dimension to the Bay Ruf range.1 At Gerry’s Fishing, we recommend the Seek 85S for anglers who need a lure that can transition between a subtle swim and an aggressive, lateral dart. At 8.5cm and 14.5g, its “general construction makes it a dense lure,” allowing it to achieve “exceptional casting distances” that defy its slender profile.
Whether you are targeting Bass in shallow estuaries or Sea Trout along the coast, the Seek 85S provides a “top-tier” subsurface action that triggers strikes from predators wary of traditional minnows.
Undulating Straight Retrieve: When “retrieved straight,” the Seek 85S performs a unique, “undulating motion.” This “snake-like” swim creates a natural, fluid silhouette in the water that mimics a relaxed, unsuspecting baitfish.
Subsurface “Walk the Dog”: Unlike traditional topwater lures, the Seek 85S can be “retrieved with a ‘walking the dog’ animation” just below the surface. This allows for “long sideways lurches,” providing a wide lateral presence that is “essential in warding off” or attracting predators in clear water.
High-Density Ballistics: Despite its “slender shape,” the “dense” internal weighting ensures it “launches very far.” This “impressive casting performance” is critical for reaching distant sandbars or “scouring as much water as possible” from the shore.
Sinking Versatility: As a “sinking” (S) model, you have total control over the depth. You can work it “inches below the surface” or count it down to explore deeper gullies and structures.
| Feature | Details |
| Model | Duo Bay Ruf Seek 85S |
| Length | 85mm (8.5cm) |
| Weight | 14.5g |
| Type | Sinking (S) |
| Action | Undulating Swim / Subsurface Slalom |
| Construction | High-Density Internal Weighting |
| Target Species | Bass, Sea Trout, Asp, and Perch |
The Seek 85S is a “precision tool” for the thinking angler. The Gerry’s team suggests:
The “Stealth” Retrieve: In calm, clear water, use a slow-to-medium “straight retrieve.” The “undulating motion” is subtle enough to fool “wary” Bass that have seen too many vibrating or rattling lures.
Aggressive Lateral Darting: Apply sharp rod twitches to initiate the “walking the dog” action. The “long sideways lurches” under the surface create a massive “flash” and displacement, which is “formidable” for triggering reflex strikes.
Matching the Sandeel: The 8.5cm “slender shape” is an “absolute reference” for mimicking small sandeels or fry. The fluid, “snake-like” swim is the “natural” movement these predators expect to see.
Search and Prospect: Use its “exceptional casting distances” to “prospect quickly” across large shallow flats. Because it is a “sinking lure,” you can adjust your rod tip height to keep it at the perfect depth relative to the bottom.
Gerry’s Verdict:
The Duo Bay Ruf Seek 85S (8.5cm/14.5g) is a “high-value” Japanese lure that bridges the gap between a sinking minnow and a stickbait. Its ability to perform “long sideways lurches” under the surface and its “undulating” swim make it an “unstoppable and formidable weapon” for technical saltwater fishing
Our entire team at Gerry’s are all experienced anglers and can help you choose the correct tackle for any fishing situation. Please drop us a message or give us a call if you need any help.
You can return unused standard items within 30 days for exchange or refund.
We check our prices weekly to ensure we can combine our fabulous service with the best prices. If you find an item cheaper and in stock somewhere else, drop us a a message in the chat box and we can see what we can do.
This item is available for next day delivery. You can pick this in the checkout.
We offer free post to any mainland UK address with a basket of more than £80. We also send all over the world and the best way to find out how much postage you will pay is in our checkout. Add the items to your basket and then add your address. Our checkout will automatically calculate your total.
We have come from a tiny fishing store and grown into one of the biggest fishing tackle retailers in the UK winning countless awards over the years. We are still a family business offer fabulous service online and in-store.
Spread the cost of larger orders over 6 or 12 month 0% APR. We also offer longer terms with APR charges via V12 finance. Available in the checkout.
You can make your next purchase a little easier on the wallet by splitting the total into 3 payments by using Klarna payments in the checkout.




Penn Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
Wader Waist Guide
Small (28″-30″)
Medium (30″-33″)
Large (34″-37″)
XLarge (37″-39″)
XXLarge (39″-42″)
3XLarge (42″-45″)
Kinetic/Westin Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Grundens Chest Size Guide
Small (36″-37″)
Medium (38″-40″)
Large (42″-44″)
XLarge (46″-48″)
XXLarge (50″-52″)
3XLarge (54″-56″)
Vass Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trakker Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Korda Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Guy Cotten Chest Size Guide
Small (86 – 94cm)
Medium (94 – 102cm)
Large (102 – 110cm)
XLarge (110 – 124cm)
XXLarge (124 – 134cm)
3XLarge (134 – 154cm)
Fox Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Nash Chest Size Guide
Small (36″-38″)
Medium (39″-41″)
Large (42″-44″)
XLarge (45″-47″)
XXLarge (48″-50″)
3XLarge (51″-54″)
4XLarge (55″-60″)
Aqua Chest Size Guide
Small (38-40″)
Medium (41-43″)
Large (44-46″)
Xlarge (47-49″)
XXLarge (50-52″)
XXXLarge (53-55″)
Guru Chest Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Preston Chest Innovations Size Guide
Small (36″-38″)
Medium (38″-41″)
Large (42″-44″)
XLarge (45″-46″)
XXLarge (47″-48″)
3XLarge (49″-51″)
Trouser Waist Guide (Inches)
Small – 28″ – 32″
Medium 32″ – 34″
Large – 34″ – 36″
X-Large 36″ – 38″
XX-Large – 38″ – 42″
XXX-Large 42″ – 46″
XXXX-Large 46″ – 52″