Knocked another fin out today but this one wasn't that bad.
The fin has no damage except for the back, it fits in snug still but you can pull it out easy.
Is there a way I can fix this fin?
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Perhaps drill a small hole into the fin (where it snapped), then glue a thin metal bar in there. After that you could wrap some tape around the metal bar to pad it out and stop it wiggling.
That's one kind of easy solution I can think of. Hardest bit would be finding the right bit of metal, but I think you could use a nail or a screw with the head cut off or something.
Lay fin down and slowly build up an edge with araldite let araldite almost set before using put a straw in the hole then shape with sand paper,can drill very small hole in fin and insert pin half way and build up around that for more strength , sounds good
... man,,,, save your time and effort, get these ones,,, they perform great and better than the original fins in my opinion!
www.ocimports.com.au/quad-rear/
put on a filter mask on face p2 might do. and round off broken cnr on bench grinder then drill same size hole as original cut 15mm off the drill bit with hack saw place in hole , locate fin , done ..
Select to expand quotePlummet said..
Its possible. But is it worth while?
I want to fix it because I've knocked like 5+ fins out, there no wind this week so I have time to tinker around to make it work lol.
I'll give it a go fixing and see how it goes, I'll post a pick once it's done.
You could fix it easily as described above. But it's just a cheapsh.i.t fin supplied by the manufacturer. They break and the performance is pretty crap. There's a whole world of really good fins out there. Go shopping.
You could use plastibond. I think you can get it at Bunnings. After it is set it can be drilled, filed, sanded and shaped to suit your purpose etc. Pretty handy stuff if your still keen to repair. You need to put a value on your time and effort but I still think its cool to fix stuff. Happy fixing
Select to expand quoteBrohan said...Plummet said..
Its possible. But is it worth while?
I want to fix it because I've knocked like 5+ fins out, there no wind this week so I have time to tinker around to make it work lol.
I'll give it a go fixing and see how it goes, I'll post a pick once it's done.
Make up a copy of your fin box in a block of timber with a router, drill a hole into damaged fin and score to form a key, put into jig and pour in a suitable compound( epoxy, araldyte etc, when set remove, sand back and shape, you'll need a solution in the jig for an easy release of fin when set
ok then.
Make a stew of epoxy and cut up carbon. build up the base with that.
Then grind back 1/2"mm on either side 40mm up the fin base lay up up 2 strips of carbon fibre.
Then drill the hole back out.
That will make it stronger than before.
Select to expand quotePlummet said..
ok then.
Make a stew of epoxy and cut up carbon. build up the base with that.
Then grind back 1/2"mm on either side 40mm up the fin base lay up up 2 strips of carbon fibre.
Then drill the hole back out.
That will make it stronger than before.
Best scenario for sure, but is it worth it?
Select to expand quotesir ROWDY said..Plummet said..
ok then.
Make a stew of epoxy and cut up carbon. build up the base with that.
Then grind back 1/2"mm on either side 40mm up the fin base lay up up 2 strips of carbon fibre.
Then drill the hole back out.
That will make it stronger than before.
Best scenario for sure, but is it worth it?
I guess if you want to tinker in your shed.... then tinker away. The cost is minimal. For me it would be zero cost as I have epoxy and carbon just lurking....
On a side note. This may be a sacrificial breaking point. Make the fin too strong and it may damage the board/finbox next time you hit something,
Hi
been doing this kind of stuff for years and to be honest most times u buy another product
to fix something ,and your time its often cheaper to go and buy another one.
Look online for a special.
Does it need to be that strong at the back? The as there wouldn't be that much force pushing on it in normal riding right, as the water would be pushing down on the fin right?
So I used araldite and a dremel to fix it, just put a bit of metal 2-3cms down and then added araldite around it. I then used a dremel to take off excess glue and shape the end, fits fine and feels solid. Took around 5-10mins to get it the right shape.
Bike shops sell kits to remake tabs for fairings... A mold you can shape and some sort of epoxy to fill it with. Now I've typed all that out, I'm sure what you've done works just as well and is cheaper 
