Rainbow Fins Longboard Fin Guide — Crafted Flow Since 1968
If you’ve ever trimmed down the line, toes over, feeling your board glide like it’s on rails - you know how much your longboard fin matters. And when it comes to quality, heritage, and that buttery Santa Cruz craftsmanship, Rainbow Fin Company is as legit as they come.
Founded in 1968, Rainbow Fins has been shaping the way surfers ride for over 50 years, creating fins for legends like Gerry Lopez, Wingnut, and Mikey DeTemple. Still family-run, still built with hand-made precision in Santa Cruz, these fins are all about performance, longevity, and that timeless surf feel we’re all chasing.
At 10 Over Surf Shop, we’re proud to stock a solid range of Rainbow longboard fins — from pivot-style noserider classics to flex-tip templates that bring your log to life.
Why Rainbow Longboard Fins Are Special
Heritage : Since 1968, RFC has been blending art and hydrodynamics to create fins that are both functional and beautiful.
Performance : Every template is designed with feedback from surfers who live and breathe logging.
Quality : Each fin is hand-foiled and polished to perfection in California. No mass-produced plastic — just proper fiberglass magic.
Whether you’re into locked-in nose rides, trimming with style, or smooth rail-to-rail carving, Rainbow’s got a fin for your flow.
Rainbow Fin Co. Longboard Fin Comparison Chart
| Fin Model | Size Options | Template Type | Best For | Board Size Range | Feel / Performance | Available at |
|---|---|---|---|---|---|---|
| Wingnut Longrake | 8" / 9" / 10" | Classic Rake | Traditional single-fin logs, noseriding | 9’0" – 10’0"+ | Stable, lots of hold, smooth drive | 10 Over Surf Shop |
| Wingnut Cutaway | 8.5" / 9.5" | Cutaway | 2+1 setups, modern longboards | 8’6" – 9’4" | Drivey yet loose, faster rail transitions | Call us |
| Mikey DeTemple MD3 Flex | 8" / 10" | Flex Tip | Modern carvers, flow surfers | 8’0" – 9’6" | Smooth flex, lively, vintage feel | Call us |
| El Gato | 9.5" | Classic Pivot | Single-fin noseriders | 9’0" – 9’6" | Lots of hold, fast trim, retro look | Call us |
| Nomad | 9.5" | All-round | All-purpose single fin | 9’0" – 9’6" | Balanced drive + looseness | Call us |
| Hull Flex | 8.5" / 9.5" | Flex Tip | Flow-style longboards | 8’6" – 9’6" | Softer feel, classic cruise flow | Call us |
| Gerry Lopez | 7.25" | Performance Rake | Shorter longboards / hybrids | 7’0" – 8’0" | Fast, loose, stylish | 10 Over Surf Shop |
| A-Flex Series | 7.75" – 9.75" | Flex Tip | Retro style & noseriding | 8’6" – 10’0" | Maximum flex, classic glide | Call us |
Longboard Fin Size Guide for UK & Europe Surfers
A simple rule:
1 inch of fin for every foot of board length.
But your style matters too - so here’s how to fine-tune it.
| Board Length | Fin Size | Setup | Notes |
|---|---|---|---|
| 7’0" – 7’11" | 7" – 7.5" | 2+1 / small single | Quick turns, looser feel |
| 8’0" – 8’11" | 8" – 8.5" | 2+1 / single | Balanced flow & drive |
| 9’0" – 9’5" | 9" – 9.5" | Single fin | Ideal for all-round longboarding |
| 9’6" – 10’0"+ | 9.75" – 10.5" | Single fin | Max hold for nose time |
Quick Tips For Finding The Right Longboard Fin
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For nose-riding: go bigger, more rake (e.g. Wingnut Longrake 10").
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For carving & turns: smaller size or flex tip (e.g. MD3 Flex 8").
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For 2+1 setups: drop down ½–1 inch on the centre fin.
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For retro cruisers: go flexy, not upright — you’ll get smoother trim.
Why We Love Rainbow Fins
At 10 Over, we’re about longboarding that’s real — boards that glide, fins that hold, and craftsmanship that lasts.
Rainbow Fins are built the right way: fiberglass, hand-foiled, with templates shaped by surfers who know the feeling of trim.
They’re the kind of fins that make you stay out for one more wave.
And with our UK stock, free delivery over £50, and real-world advice from people who actually ride these fins, you’ll find your perfect setup faster than you can wax your log.
Final Thoughts
If you ride longboards - from heavy logs to modern cruisers - your fin is your rudder, your engine, and your soul. Choose a Rainbow Fin that matches your board and how you want to surf, and you’ll unlock a whole new feel underfoot.
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