do these fins fit in a standard FCS box?

[pmcaero]

http://www.hsssurf.com/fcs-g-l-glass-fl ... 84485.html
Says GL on them, I want to use them on my Bic 7'9" Mini Malibu.

[Big H]

Yes they do; I have a set of GL's in black. Make sure that your centre fin is relatively small if you use those unless the waves are fairly strong a 6-6.5" centre with the GL sidebites for that 7'9" should be more than enough. If the board is a thruster set up I wouldn't use those, they are quite small.

[Big H]

If you do have a single fin with sidebite set up (2+1) I'd just run with the single fin to learn and practice turns....it will make you be more careful with your technique; you will have to do the technique correct to turn smoothly....then you'll have learned the right way. If it is a thruster set up just stick with standard thruster fins would be my suggestion.

[pmcaero]

Thanks for the response. I broke one of the side fins off the 7'9" Bic board which came with a thruster setup.
So I was thinking , keep old center fin, and replace the side fin with these. So indeed the center fin is small, not suitable for a single fin setup.

[Big H]

You need more fin than that; just go with a full thruster set rather than sidebites.

[pmcaero]

Oops too late, I just ordered them. But I got them off ebay for only $12 so if I don't like the setup no biggie