Tectonics Demon Beasty Weed Tri-Set

USD $355
Current Stock:

Tectonics Beastie Fronts (pair) required
Tectonics Weed Demon Center required

The world's best no-compromise weed fin , redesigned and engineered for 2019 to provide a huge increase in performance ! Faster acceleration and planing,  better upwind performance and a much more centered feel. 

THE only Weed tri-fin setup that actually works without a performance compromise.

Everyone who has the original Weed Demon will definitely want to upgrade to the Weed Demon 2, This fin Rocks ! 

First time out, 3 prototypes at the Hatteras Windsurfing Festival finished 1,2,3 !

Fin bases available:  US (to 31cm), power, tuttle, deep tuttle 

Power/tuttle bases have 6mm threads. 1/4" threads available on request

Add $10 for deep tuttle base available only in sizes 38 and 41cm 

By far the best Weed Fin in the World. Faster, Smoother, Planes sooner, Holds speed through the jibe and points higher. 

Everyone who has tried this fin cant believe how much fun it is and buys it.  

Designed by a Nasa rocket scientist and a Master, mechanical engineer, the Weed Demon is the result of extensive computational fluid dynamic modeling combined with real world testing on several continents which has produced the most efficient, fast, smooth and fun to ride weed fin available.

Don't take our word for it.. here is what our customers say...


"I was totally amazed not only with the all out board speed increase but the ability of this fin to drive me upwind compared to any other weed fin I had ever used. I came back in and said to Keith, "Is this really a weed fin?" It felt like sailing with a quality pointer race like fin which also turned like a wave fin! After sailing with it the rest of the day I was so impressed that I immediately ordered several for myself. " follow up report... "Had a great session at the Hole yesterday test riding my 27 cm Weed Demon on my Tabou Pocket Wave with a 5.0. I know I had that board going faster than I ever had before and going upwind was so easy.
"I got to try out your weed fin the other day. I have to say it goes dang good. Felt very efficient, fast, and great hold. Didn't feel like a weed fin at all." CT
"On the smallest board, I was having a ball with my brand-new Weed Demon  - the best weed fin I ever sailed. I could not get that baby to spin out" PR

"We’re very impressed at the performance of the Beasties and the Weed Demons, its quite refreshing to have a 100% excellent rating on the satisfaction of weed fins in terms of performance from customers. Weed fins through history have always been more of a compensation with a net performance loss in a “no choice” application. One weed is one too many…"

Bruno Robida, 2-Rad Canada, having just spent 3 weeks in Hatteras testing the new fins for the shop, testing on their best selling Fanatic STB Free-Wave boards, tri fin, Power box Weed Demon center, Slot box Beastie B3 10 sides