£21.99
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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.
At Gerry’s Fishing, we know that when the water is clear or the Bass are focused on tiny “pin-bait” and fry, a standard lure is often too much. The Megabass Karashi SW FS (Fast Sinking) is a masterclass in finesse. This compact 5.9cm stickbait is designed to fool the wariest of predators that have become “lure shy” or are simply refusing to break the surface.
The “Fast Sinking” designation is key. While the lure remains small, its 9g weight and dense body allow it to cut through the air for impressive casting distances, even on breezy coastal days. As it sinks, the Karashi SW FS exhibits a pronounced shimmy-roll, sending out high-frequency flashes that mimic a dying baitfish. This “vibration on the drop” often triggers strikes before you even begin your retrieve.
The real magic of the Karashi is its versatility. You can work it with a simple straight wind, or use rhythmic rod twitches to perform a sub-surface “Walk-the-Dog” action. This allows you to hunt in the upper water column without the lure splashing on top—perfect for when fish are following but are too spooked to commit to a surface strike.
| Feature | Details |
| Length | 59mm (5.9cm) |
| Weight | 9g |
| Type | Fast Sinking (FS) |
| Action | Sub-surface Walk-the-Dog / Shimmy Fall |
| Hooks | Two #10 Saltwater Trebles |
| Target Species | Bass, Perch, LRF Species, and Pelagic Fry-feeders |
| Build | Heavy-duty Saltwater (SW) Construction |
This “bit-sized” weapon is a must-have for specific, high-pressure scenarios:
Early Season “Fry Run”: When estuaries are teeming with tiny transparent fry, Bass become incredibly selective. The Karashi’s 5.9cm profile is the perfect match for this “micro-bait,” allowing you to “match the hatch” perfectly.
Ultra-Clear Water & Calm Days: In Gin-clear water, fish can spot a fake lure from a mile away. The Karashi’s subtle, silent action and realistic shimmy provide a natural presentation that doesn’t overwhelm the fish’s senses.
Targeting “Followers”: We’ve all seen it—a big Bass following a surface lure but refusing to hit. By switching to the Karashi and walking it just 10–30cm below the surface, you stay in their strike zone while removing the “barrier” of the surface film.
Deep Jetties & Pier Walls: Because it is the Fast Sinking version, you can count it down to fish deeper structures. It’s an exceptional tool for “Vertical Finesse” along harbor walls where Bass and large Pollock often hover in the shadows.
Gerry’s Pro Tip: Don’t be afraid to let this lure sink! The “FS” model is designed to be active on the fall. Cast it out, let it sink on a semi-slack line for 3–5 seconds, and watch for your line to “tick.” Many of our local experts find the biggest fish hit during that initial shimmying descent
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″