duotone fin set tri slot us 2026 44250-3013 The Evo Concept Blue offers

The Evo Concept Blue offers easy and intuitive jumping

ergonomic and at the same time dynamic riding position on the bike due to the different axle lengths

The simple design with red highlights is an absolute eye-catcher on the mountain bike

5’’ (100l) and 8’6’’ x 19’’ (110l)

with its eye-catching design

duotone fin set tri slot us 2026 44250-3013 The Evo Concept Blue offersWe offer the fins exclusively as a complete set because they were engineered to work in perfect harmony exactly as Kai intended. While other brands rely on compromise designs that need to work across multiple setups (single, tri thruster, quad), the TRI fin set is different. Its a nocompromise, highend solution created to meet and exceed the expectations of World Cuplevel riders. In fact, its an open secret that many of the sports top professionals