HELP

General Discussion
1

Just finished a 9’ 4". (5th. longboard, been having trouble)

18.75 x 23 x 13.75 x 3

4.75 nose rocker

4.00 tail rocker all blended.

Low, high volume rails.

Problem is I cocked up putting in the fin box !!!

It points off to the right about 1/16" AND is slightly canted .

When nose riding, particularly going right, the tail spins out unpredictably.

Do you guys think it is the fault of the box and if so what can I do ?

Or is it just too much tail rocker. P.S. It turns great thuogh.

2

see post below

3

There’s a great thread going right now on box installs. Several vets have pointed out

that the best way to install the single box is with a fin or dummy in the box so you can

optically true it and avoid exactly the situation you’re in. But don’t feel too bad, I think

all of us have sunk a crooked box or two.

Mike

4

just fill in the box and put a glass-on fin in. It’s really simple, just make sure you sand down the tail area so you get a strong bond. And use plenty of rope if you have a noseriding fin or it will start to crack around the base. And next time you do a box always but a fin in it when you’re lining it up so you know it’s straight.

5

Hi Pete -

I doubt the spin out problem has much to do with the fin box issue but it might. I’d try moving the current fin back a bit or modify it by cutting away the trailing part of the base so it’ll slide back farther in the box. Maybe get a bigger fin?

Within close enough tolerances, I doubt there are many fin boxes that are installed perfectly. I’ve seen some tweaked fin box installations in pro boards sitting in showrooms and have stuffed up a few of my own. It didn’t seem to affect the ride much if at all.

IMO you may be chasing diminishing returns trying to get it “perfect” at this point.

6

Putting a fin in the box will also prevent shrinking from the heat, but I’m with John I doubt that 1/16 would make much difference.

7

1/16" ? That will not be causing spinouts. Maybe the fin is the issue. Try a different fin, and like the guys have said, move it back a bit in the box.

8

i agree with john mellor.

i’ve found that low hard rails in the last 2 to 3 feet of a long board leads to the sort of spin outs described. a fin with a wide base and lots of depth may help some. the installation of side bites may also help.

typically a noserider would have 50 - 50 or raised rails in the last 2 -3 feet.

9

Thanks guys all the input is graet.

I must say I thought of routing out the box but wanted to see if you guys thought it was worth it !!!

Seems not really

Have tried moving fin back which helps a bit but will now try a larger fin.

NEXT board will have softer tail rails and perhaps less O.A. rocker

10

i just re-read your initial post (now i don’t think i ever really read it the first time…sorry), and if your spinouts occur primarily when going right, and the box is toed a bit to the right, then that would NOT facilitate the spinout. fat low rails are the likely culprit, and you can counter that by putting a big ol’ noserider fin in the back.