Roberts Surfboards
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WHAT IS TWONZER?


Roberts Twonzer Fin Sets are solid fiberglass fins designed to work with the special fin placement that Rob designed to provide a blend of twin fin speed with the hold of a quad setup.  It utilizes deep boxes for the front and rears so that the board can handle the drive that's derived from the Twonzer fin set. You can find it standard in our boards such as the Bro Fish, Disco Diamond, Invader, and Star Chip though they can be custom ordered in standard placements as well. And many of the other Roberts models can be ordered custom with Twonzer placement for that feel of speed and hold.

To size your Twonzer fin set:

choose size Medium for riders under 180 lbs or Fish / Grovel / Alt style boards under 5'8 or most Betweener / Performance style boards boards under 6'2
​-or-
choose size Large for riders over 180 lbs or Fish / Grovel / Alt style boards over 5'8 or most Betweener / Performance style boards over 6'2

Twonzer fin sets are only available through our website, Anacapa Surf Shop, or by calling the factory. If you are buying a stock board that has Twonzer fin placement from a dealer, they may have the fins in stock for the board. If they don't please use one of the ways mentioned such as clicking on the SHOP button here. In the past the Twonzer fins sets were being manufactured through Futures. They are currently made in California by Rainbow Fin Company and available exclusively through Roberts or our dealers.
SHOP
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Contact Us

Roberts Surfboards 
1362 Tower Sq. # 1 
Ventura, CA 93003
Factory Phone: 805.658.6855
Send us a message HERE
Factory Showroom  

Anacapa Surf N Sport

1005 Harbor Blvd.
Oxnard, CA 93035
Phone: 805.382.1602

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  • SURFBOARDS
    • DIAMONDS & DERIVATIVES >
      • WHITE DIAMOND
      • WHITE DIAMOND 2
      • WD3
      • DIAMOND FISH
      • DISCO DIAMOND
      • HOPE DIAMOND
      • 3DF
    • GROVELERS >
      • DREAM MACHINE
      • FLOATY
      • MUSH MACHINE
      • MUTANT
      • POOL TOY
    • ALL-AROUND ALTS >
      • THE DREAMCATCHER
      • THE DREAMCATCHER PLUS
      • DREAM MAKER
      • DREAM MAKER PLUS
      • JACKAL
      • THE ANYTHING
      • BRO FISH
      • DISCO HIPPY
      • METAMORPH
      • METATWIN
    • BETWEENERS >
      • ARMY KNIFE
      • BIODIESEL
      • CG
      • DIRTY BIRD
      • EL TORMENTOR
      • FISH PACO
      • THE LIP
      • MEAT CLEAVER
      • MODERN 80'S
      • MODERN GEM
      • STAR CHIP
      • THE GOODS
      • THE VINDICATOR
      • VLAD
    • BLACK SERIES >
      • BLACK COBRA
      • BLACK DIAMOND
      • BLACK DUMP TRUCK
      • THE BLACK PUNT
      • BLACK THUMB
    • HIGH PERFORMANCE SHORTBOARDS >
      • GSD
      • MM-16
      • MP3
      • REDNECK
      • ROBS BIG BOY TRI
      • T-33
      • THE ILL
      • THE RAP
      • TURBO DIESEL
      • GROM SHORTBOARDS >
        • THE BEAVER
        • CRUZEE
    • STEP UPS AND BIG WAVE GUNS >
      • G STEP UP
      • OB PIN
      • PIN MASTER
      • TURBO CHARGER
      • WOOLLY MAMMOTH
    • MODERN CLASSICS >
      • HPLB
      • MODERN MID
      • INVADER
      • TWINVADER
      • THE FUN 1
      • CLASSIC LB
      • CLASSIC MID PIN
      • CLASSIC SINGLE + 2
      • CLASSIC FISH
    • ALL SURFBOARDS
  • Q&A
    • VOLUME FINDER
    • BOARD QUESTIONNAIRE
    • LOGO / ART OPTIONS
    • WHAT IS TWONZER?
  • TECHNOLOGY
    • PU/PE
    • RET
    • RFT
    • RFT-2
    • RFT-TDD
    • ESWT: EPOXY SOFT WRAP TECH
    • RET-KB
    • ALTERNATES
  • ABOUT
  • DEALERS
  • SHOP
    • CUSTOM SURFBOARDS
    • STOCK SURFBOARDS
    • FINS
    • APPAREL
    • GIFT CARDS