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i-SUP
Crossover "Slot in" Fin
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This fin fits the i-SUP Fun box
- Suitable for Mistral, Tiki, Aqua Marina, Naish, STX, Gun, Vandal and JP centre fin
boxes
- Supplied complete with locking pin
- Durable polycarbonate construction
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2.5" White Water fin
- Great for white water
- Fantastic shallow water fin
- Unidirectional
High levels of manoeuvrability
- An ideal soft rubber fin for rapids
- FCS-compatible box - for 2015 and later models of the
Astro Stream. It also works in hard boards too..
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Blue Chip
Rescue Grub Screw for FCS and Future fin boxes:
- FCS and Future fin
boxes are great but the retaining grub
screws can, if over tightened, strip the
thread of the composite material they are
located in. this can be a frustrating
experience and often results in the complete
finbox having to be replaced and that is
time consuming and expensive.
- Blue Chip now supplies a
Rescue Grub Screw that will save you time,
frustration and expense.
- We have the
Rescue Grub
Screw made with a fine high grip
80° thread pitch and is 0.225 mm wider
than the original grub screws supplied with
your board.
- The Rescue
Grub Screw has a higher grip
surface than your original grub screw
- The
Rescue Grub Screw will cut its own
new and secure thread into your original
stripped grub screw placement in your board
and operate as normal.
- Remember, do
not over tighten your grub screws, they only
need to pinch the fin lug.
FCS 10 mm in length |
Single |
£2.50
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Set
of 6 |
£10 |
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Future16 mm in length |
Single |
£2.50
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Set
of 6 |
£10 |
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FCS/ Future
Rescue Grub Screw
for stripped threads

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FCS Thruster fins
- 60°pitch gives great board stability whilst allowing
high levels of manoeuvrability
- An ideal cruiser fin for relaxed SUPing.
- This is an ideal fin for all 1-SUPs
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How to fit a US Box fin

Installing
the fin (US box systems)
Insert the brass plate into the fin box slot and slide it
completely forwards.
Insert
the fin into the fin box slot and slide backwards to the desired
position. By default, the recommended position is either marked
on the board or it is centred in the box. Adjusting the fin
position forwards or backwards will depend on personal
preference and tuning.
Rotate the fin until the fin sits almost
flush with the board's bottom surface Align the brass plate hole
to the one in the fin base head, insert the fin bolt through the
holes and tighten securely until the fin base is flush with the
board's bottom surface.
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