3DFINS - Josh Kerr 4.0 Thruster
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3DFINS - Josh Kerr 4.0 Thruster

Josh Kerr Purple 4.0 (Sml.)Thruster

The 4.0 is our step-up Grom/Manchild fin: just what a grom on the grow needs.

These fins are super responsive, the dimples combined with extra base give insane drive with the slightest push on the pedal. The reduced area at the tip allows for slick release so Manchild can do whatever he wants to do. This fin is also great for bigger surfers wanting some fun in smaller waves or Wakesurfing. 3DFINS unique embedded graphic process takes Fin design to the next level. The smaller template is also great for the girls wanting some extra speed and release.

Fibreglass/Hexcore Construction (FCS or Futures base compatible).

Surfer Size:55-75kg ( 121-165 lb)
Height: 4.42" (112.27mm)
Base: 4.29"(108.97mm)
Rake: 32.4 degrees
Best Board: High Performance short board, wakeboard.
Best for Waves:  Good for Small, Medium surf. 


or make 4 interest-free payments of $32.50 AUD fortnightly with Afterpay More info

Bonus Ocean & Earth Tailpad
Bonus Creatures Legrope
20% off all Fins
Enter code 'FINSHOP' at checkout

Board Culture endevours to keep as much stock as possible in-store to ensure availablity for all customers. However sometimes we can't keep every product to suit all requests.
If you have any queries please contact the team to check stock availability.


  • Products available in-store delivered in 3-5 days
  • Products ordered from suppliers delivered in 2-4 weeks
  • Custom orders please contact Board Culture for timeframes



ALL BOARDS - Flat Rate Delivery to Major Centres East Coast Australia

Please contact the team for any board orders and delivery costs for SA, WA & NT 

ALL BOARD ACCESSORIES - Flat rate delivery Australia-wide all orders

ALL BOARD FINS - Express Delivery Australia-Wide 

Contact Board Culture  - 07 5572 0035

Want to know more about this product or have a question.

Please do not hesitate to contact the Board Culture team.

07 5572 0035
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