Thruster fin sets

Choosing a thruster fin set

A thruster setup has three fins: a left front, a right front and a center rear fin. Every Butterknives set has the same fin shape in all three spots; the sets differ in design.

Three of a kind

All Blacks: three solid black Detained fins. All Stripes: three Condemned fins, striped black and white. All Whites: three solid white Suspected fins.

Mixed sets

Almost: two black fins up front and a white center rear. Cray: two striped fins up front and a black center rear. Ballistic: one of each design. Want another mix? Pick any three fins in Pick your poison, also €79 with a free Butterwax.

FCS1 or Futures?

Every set comes on the base that fits your board. Two small plugs per fin is FCS1: choose the dual tab base (see all FCS1 fins). One long, narrow box per fin is Futures: choose the single tab base (see all Futures fins). Not sure? Read which base do I need. Butterknives for FCS II boxes are not available yet.

The fin

A honeycomb core keeps the fin light, with a medium flex. The wide base gives drive, the slightly bolder tip grip in your turns. Each fin is 117.1 mm wide and 122.3 mm high.

Lose one later?

Buy just that fin: every Butterknives fin is sold on its own, in every position, for €30. See replacement surf fins.

Shipping and returns

Every set ships free in the EU, from The Hague within 1 – 3 working days, with track & trace. You can return your order within 14 days.