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The original Knubster was developed by Sean Mattison for Von Sol surfboards, the Futures TMF (The Middle Finger) Knubster is a 5tf. Fin center fin that can be added to any quad set-up.
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TMF Knubster Fin
Base: 3.75 in
Depth: 2.00 in
The original Knubster was developed by Sean Mattison for Von Sol surfboards, the Futures TMF (The Middle Finger) Knubster is a 5tf. Fin center fin that can be added to any quad set-up.
The fin will increase drive and provide directional control through turns without sacrificing speed, flow, or the freedom of movement typically associated with a quad.
The Future Fins TMF, which is 3 3/4" by 2" high, is a similar template to the FCS Knubster that Kelly Slater used as a 5th. Fin on his quad during the Quiksilver Pro in New York. According to Kelly's report, "The FCS Knubster will make your quad set-up feel faster, smoother, and it adds a little more control".
The Future Fins TMF (The Middle Finger) is made from Futures' world famous Composite material giving it the perfect amount of flex at a great price point!
Available materials :
Thermotech
Price above is for a complete thruster set of 3 fins (boxes sold separately - OPTIONAL...).
Let us help you choosing the right fin for yourself by clicking on image below :

See the installation process video by clicking here .
Data sheet
The original Knubster was developed by Sean Mattison for Von Sol surfboards, the Futures TMF (The Middle Finger) Knubster is a 5tf. Fin center fin that can be added to any quad set-up.
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