riverskate fin boxes are part of the evolving flow lab system — allowing riders to explore custom fin placement, twin-tip experimentation, and new approaches to edge control.
one common use: they allow you to transform our fakie model hovercraft into a 4WD (twin tip) riverskate.
these are high-strength, glue-on fin boxes manufactured by airsup specifically for riverskate, and our go-to fin boxes for several reasons:
ultra low-profile design that holds up well during finless riding (common in riverskate experimentation and shallow whitewater use)
compatible with all standard fcs-style two-tab surf fins
simple installation using vinyl cement (hh-66), making it easy for riders to experiment with different fin placements and setups as the flow lab evolves
each fin box comes with a laser-cut pvc patch for easy installation and reinforcement.
each fin box kit includes an extra fin key.
sold individually. if you need a pair, please order 2.
