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Port Noarlunga, SA, 5167
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Forums > Stand Up Paddle General

Sup fins quad-Thruster set up on board

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Created by Barberj > 9 months ago, 28 Jan 2017
Barberj
VIC, 5 posts
28 Jan 2017 12:31PM
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hi,
got a my new jp 8.1 surf sup and wanting to try out the quad set up and never had a board that allows me to change I don't have the fins for this but wanting to know what fins are out there ( sizes ect )?? at present I'm running the standard 1x R7 and 2xR 5 fins , any thoughts?

colas
5158 posts
29 Jan 2017 6:05PM
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For the quad setup, I think, and it seems Erik of twitter.com/erik_antonson found out the same thing, that we need on SUPs to oversize a bit the front fins, and undersize the rears, compared to what would work for our weight on a prone shortboard.

Also, oversize them on short ( 8'6" +) boards, and undersize on short (7'6" -) boards. It seems related to rail thickness: the more volume in the rail, the bigger the front fins.

So, basically take what a size chart would advise you for surfing fins for your weight, and undersize/oversize accordingly.

C-Drives are an excellent solution for front fins, to oversize the grip while keeping looseness at speed.

Barberj
VIC, 5 posts
30 Jan 2017 7:59PM
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colas said..
For the quad setup, I think, and it seems Erik of twitter.com/erik_antonson found out the same thing, that we need on SUPs to oversize a bit the front fins, and undersize the rears, compared to what would work for our weight on a prone shortboard.

Also, oversize them on short ( 8'6" +) boards, and undersize on short (7'6" -) boards. It seems related to rail thickness: the more volume in the rail, the bigger the front fins.

So, basically take what a size chart would advise you for surfing fins for your weight, and undersize/oversize accordingly.

C-Drives are an excellent solution for front fins, to oversize the grip while keeping looseness at speed.


Thanks colas for the info will check out the web site and do some research on it. Jp don't have fin sizes and body weight info. none of there boards have quad fins to even try it out compared to other board manufacturers so I guess I will source the sizes and go from there! Cheers!

colas
5158 posts
30 Jan 2017 9:13PM
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Select to expand quote
colas said..
Also, oversize them on short ( 8'6" +) boards, and undersize on short (7'6" -) boards.


Sorry, I meant oversize them on short ( 7'6" -) boards, and undersize on short (8'6" +) boards.

mybrosweeper
NSW, 1016 posts
1 Feb 2017 4:38PM
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this has been my summer slop rig.Heaps of sliding fun


Tardy
5103 posts
2 Feb 2017 11:38AM
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IF YOUR BOARD IS WIDE IN THE TAIL A QUAD SET UP IS THE GO . e.g....x32 Hokua .

SPECIALLY with 7 foot wide boards ,

A set of STANDARD medium size is good ,I Brought a large set but found them to big on most boards .
two sets... to play around ,1 small 1 medium ...set for life .

Barberj
VIC, 5 posts
5 Feb 2017 12:11AM
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Thanks guys on the input! Will have a play around with it , otherwise I will stick to what I know. Trusted Thruster! Happy surfing.????

Barberj
VIC, 5 posts
5 Feb 2017 12:16AM
Thumbs Up

Thanks guys on the input! Will have a play around with it , otherwise I will stick to what I know. Trusted Thruster! Happy surfing.????

Select to expand quote
Tardy said..
IF YOUR BOARD IS WIDE IN THE TAIL A QUAD SET UP IS THE GO . e.g....x32 Hokua .

SPECIALLY with 7 foot wide boards ,

A set of STANDARD medium size is good ,I Brought a large set but found them to big on most boards .
two sets... to play around ,1 small 1 medium ...set for life .




Boards 8.1 x 28 103 litres



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"Sup fins quad-Thruster set up on board" started by Barberj