2+1 fin size

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2+1 fin size

Postby SirFrancis999 » Fri Apr 07, 2023 12:29 am

Hey guys,

I need to replace my side fins, one snapped off in a wipeout. I currently have an 8.25in centre fin and 4.5in side fins (G5). The board is high volume longboard 9ft, 23, 3.25. (thick rails) I'm 5.7 & 68kg.

I would say I'm at early intermediate ability. I think I would like an all rounder capability, stability plus turning.

So what do you recommend re fin sizes? I think my side fins might be a bit big? Is my centre fin ok at 8.25?


Ok thanks
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Re: 2+1 fin size

Postby waikikikichan » Fri Apr 07, 2023 7:47 am

FCS G5's are way too big as "sidebites". I would go with FCS GX sidebites.

Screenshot 2023-04-07 4.45.02 PM.png


As for the center fin, you also need to consider the base, rake and overall surface area, and not only the height.
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Re: 2+1 fin size

Postby SirFrancis999 » Fri Apr 07, 2023 11:32 am

Yeah I figured they were too big....ha, Ok GX sounds good I'll hunt some down. thanks heaps

Centre fin is 'normal' shape lol..... I don't know what they're called. It's not thick, not thin. Tried to attach photo, but not sure it's working.

IMG_0893.JPG
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Re: 2+1 fin size

Postby waikikikichan » Fri Apr 07, 2023 8:33 pm

We’re you running that center fin all the way back in the box while using the G5s ?
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Re: 2+1 fin size

Postby SirFrancis999 » Fri Apr 07, 2023 9:46 pm

No it was in the middle. The board just came back from repair of the rail damage and I also noticed it was back in the box. It's a bit loose, have to tighten it up. I will move it back to the middle. I could also try it as a single fin I suppose for laughs. However I sometimes have my dog on the front and he's 17kg so probably need stability. lol......hmmm maybe a single would work well in that case?.....
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