Forums > Windsurfing General

Resizing a fin

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Created by Obelix 8 months ago, 11 Apr 2025
Obelix
WA, 1128 posts
11 Apr 2025 2:43PM
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Hi guys,

I have a Tribal PowerMax in 44cm which I don't use, but need around 39cm.
The head is crumbling a bit, so I thought I could shorten it from the top and rebox it?
Any issues with this approach?

I can't do it though. Is it cost effective?
thanks...

RonanL
4 posts
11 Apr 2025 5:41PM
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Hi, no problem to resize from the top (Select Fins does it in France for approx 40 euros for a TT box)

Obelix
WA, 1128 posts
11 Apr 2025 5:47PM
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Select to expand quote
RonanL said..
Hi, no problem to resize from the top (Select Fins does it in France for approx 40 euros for a TT box)



That's encouraging, thanks.
France is pretty far though

spanishwog
QLD, 121 posts
12 Apr 2025 7:52AM
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Ive resized a fin from the bottom - hit rocks with my 30 - filed the damage out so now its a 26!!

jdfoils
431 posts
12 Apr 2025 11:01AM
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When i was doing lots of freestyle is used to regularly downsize 32-36 fins down to 12-14.

Just chop them off with a hacksaw, then reshape/refoil the tip with a sander. Fins were chosen for their chord length and then cut to the desired length.

lemat
184 posts
12 Apr 2025 12:58PM
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I buy used fins for cheap and repair/resize them. I repair head of fins with minimal modification and resize from base to keep "right" stiffness. For that i use select adaptator, powerbox for me, and epoxy glue reinforced with fiberglass, so don't need base mold. If you reduce size from head you should have the size you want but stiffer.

Mark _australia
WA, 23433 posts
12 Apr 2025 1:43PM
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^^^ that

if u get the select head I will fit

lemat
184 posts
12 Apr 2025 8:19PM
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I use multiconic select adaptator




Obelix
WA, 1128 posts
13 Apr 2025 3:55AM
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Thanks.
Will check where to buy the Select head.

Also anyone in Perth does reboxing using a base mould?



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"Resizing a fin" started by Obelix