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SUP Fins

I-SUP Board Brands

All fins are supplied without fin screws - If you require a fin screw, click here to order the fin screw of your choice
 
2.5" White water fin 8" FCS II Connect Crossover 4" PH River Fin
9" Cruising 8" Cruising Shallow 6.5" Shallow Water
Weed Fin 10" WindSUP Centre Fin  
 
SUP "Slot in" Fins Crossover Slot Fins SUP Astro Fins
SUP Fun Fin locking pins SUP Fin Fixings & FCS Rescue Screws FCS Thrusters

    

How to fit a fin in a US style (Longboard) fin box)

  

8" FCS II Connect Crossover

  • 55°pitch gives great board stability whilst allowing high levels of manoeuvrability
  • Neutral, well balanced template, versatile, high performance SUP fin for all conditions. Offers a combination of drive, speed and response.
  • This is an ideal fin for all i-SUPs
  • Length of the base is 6"

 
Size    
Draft Depth 8"  
Cord at 1" 5"  
Pitch 55°  
 
Material
Reinforced Polycarbonate
 
Price £32.95

 

8" High Aspect Cruising Shallow

  • 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 i-SUPs
  • Length of the base is 6.75"
  • Base length can be trimmed to 6.5" on request
    to make it suitable for 2016 Red boards
Size    
Draft Depth 8"  
Cord at 1" 4.25"  
Pitch 60°  
 
Material
Reinforced Polycarbonate
 
Price 16.95
Click here to order the fin screw of your choice

 

9" High Aspect Cruising

  • 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 i-SUPs
  • Length of the base is 6.5 "
  • Suitable for 2016 Red boards
Size    
Draft Depth 9"  
Cord at 1" 5"
Pitch 60°  
   
Material
Reinforced Polycarbonate
 
Price £16.95
Click here to order the fin screw of your choice

 

10" WindSUP Centre Fin
 & High Aspect Coastal Crossover

  • Great as a WindSUP centre fin
  • 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 i-SUPs
  • Length of the base is 7"
  • Not suitable for 2016 Red board
    fin boxes
Size    
Draft Depth 10"  
Cord at 1" 5.75"  
Pitch 60°
Material
Reinforced Polycarbonate
Price £18.95

Click here to order the fin screw of your choice

 

7.5" High Aspect Shallow Water

 

  • 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 i-SUPs
  • Length of the base is 5.5"
  • Suitable for 2016 Red 6.5" fin boxes
Size    
Draft Depth 7.5"  
Cord at 1" 4"  
Pitch 60°  
     
Material
G10  GRP (very durable)
 
Price 14.95
Click here to order the fin screw of your choice

 

6.5" High Aspect Shallow Water

 

  • 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 i-SUPs
  • Length of the base is 5.25"
  • Suitable for 2016 Red 6.5" fin boxes
Size    
Draft Depth 6.5"  
Cord at 1" 4"  
Pitch 60°  
     
Material
G10  GRP (very durable)
 
Price 13.95
Click here to order the fin screw of your choice

 

10" Weed Fin

 

  • 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 i-SUPs
  • Length of the base is 10"
  • Not suitable for 2016 Red board fin boxes
Size  
Draft Depth 10"  
Cord at 1" 6"  
*Pitch 40°  
     
Material
G10  GRP (very durable)
Price £49.95

Click here to order the fin screw of your choice

 

Starboard Astro Fins

  • Foiled to reduce drag
  • Max fin box protrusion of only 7mm
  • Available in  6.75" center fin
  • Available in 4.5" side fins 

23 cm and 8" are now sold out and no longer available
Size   Price  
6¾"   £34
4.5" Port £34
4.5" Starboard £34

 

i-SUP Crossover "Slot in" Fin

  • 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
Size Price  
Cross 9" 19.95
Cross 11" 19.95

 

i-SUP Standard "Slot in" NISCO Race Fin

  • This fin fits the i-SUP Fun box
  • Suitable for  Naish & STX fin boxes  
  • Supplied complete with locking pin
  • Durable polycarbonate construction
Size Price  
Race 26 cm 29.95

 

i-SUP Standard "Slot in" Fin Locking Pins

  • This locking pin fits the i-SUP fun fins
  • Suitable for Astro Fun, Naish, Gun, Vandal and JP removable fin boxes  

 
Size Price  
Standard £6

 

4" PH River Fin

  • Great for white water
  • Fantastic shallow water fin
  • High levels of manoeuvrability
  • An ideal fin for rapids
  • Great extreme weed fin
  • This fin doesn’t extend as deep in the water & prevents the fin from hitting the bottom in shallow waters

 
Size    
Draft Depth 4"  
Maximum Cord 250 mm  
Pitch 35º  
     
Material
Injection molded pliable composite
 
Price £35.95
Click here to order the fin screw of your choice

 

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..

 
Size    
Draft Depth 2.5"  
Cord at base 110 mm  
Pitch Unidirectional  
     
Material
Vulcanised rubber
New stock has now arrived
Price £18.95

 

SUP Fin Fixings:
Cross head fin screw
£3.95
SUP fin bolt & plate
(no tools required)

£3.95
FCS key and screw set
£5.95

 

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
  Set of 6 £10
Future16 mm in length Single £2.50
  Set of 6 £10
FCS/ Future
Rescue Grub Screw
for stripped threads

 

£15
Port		 £15 Starboard £25
pair		 £30
set of 3
4.5" 4.5" 4.5" 4.5"

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
Size    
Draft Depth 4.5"  
Cord at 1" 3.5"
Pitch 45°  
   
Material
Thermoformed polycarbonate,
Great durability and rigidity

 

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.