FCS MB PC Carbon Tri Fin Set-Red-Large
Available on orders of $100 or more. Excludes boards and oversized items.
Shipping details Extended holiday returns Return through Jan. 24, 2027Eligible purchases Nov. 6–Dec. 24, 2026. Exclusions apply.
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Talk to a REAL Pro who rides it.
Located in Cape Hatteras. No bots.Designed by revered shaper Matt "Mayhem" Biolos. Same proven template with a new look.
The MB template offers freedom to perform tight turns in the pocket with an emphasis on speed.
Sitting in the reactor family, the MB is considered a high performance fin because it responds incredibly fast, but still offers enough control so you can confidently lay into a turn with plenty of force.
A wide range of conditions, particularly good in critical overhead waves.
Designed to fit the FCS II Fin System.
Performance shortboards and hybrid models.
Reactor: Find Speed. Speed, tight turns & snaps.
| Fin | Base (inches) | Base (mm) | Depth (inches) | Depth (mm) | Area (inches) | Area (mm) | Sweep (deg) | Foil |
|---|---|---|---|---|---|---|---|---|
| LRG | 4.41 | 111.9 | 4.74 | 120.3 | 15.26 | 9847 | 32.9 | Flat |
FCS designs high-performance surf hardware and accessories—from fins to traction—focused on enhancing control, speed, and connection between surfer and board across all conditions.
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