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Stand Up Paddle => SUP General => Topic started by: oceanAddict on May 13, 2019, 08:05:04 PM

Title: Surfboard Leash String - what to use?
Post by: oceanAddict on May 13, 2019, 08:05:04 PM
What do you guys use for a leash string? I had one failed on me a few years ago and I bought a few the same day, just realized I'm out of those. Thought I prob could make them myself.
Thanks
Title: Re: Surfboard Leash String - what to use?
Post by: surfsupla on May 13, 2019, 08:22:21 PM
Parachute cord. Pretty cheap on the amazons.
Title: Re: Surfboard Leash String - what to use?
Post by: Area 10 on May 14, 2019, 12:35:59 AM
I use high-quality yacht rope: preferably dyneema core (or similar) with a polyester (UV resistant) outer sleeve. It takes a knot well, is very strong and durable, wonít fray if cut with a hot knife, and is designed to do what you are using it to do. You can also get it in a wide variety of colors to complement your board. I then superglue the knot to ensure it can never come undone. This will then pretty much outlast your board, and will not break.
Title: Re: Surfboard Leash String - what to use?
Post by: Badger on May 14, 2019, 04:02:59 AM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.
Title: Re: Surfboard Leash String - what to use?
Post by: RideTheGlide on May 14, 2019, 04:50:55 AM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.
Or a near equivalent industrial cousin:
https://www.amazon.com/Mophorn-Polyester-Pulling-Arborist-Gardening/dp/B07M9X3NBS

Someone translated to English a little too literally. Read the first sentence of the description (starts with [ATTENTION]). ???
Title: Re: Surfboard Leash String - what to use?
Post by: Badger on May 14, 2019, 05:16:02 AM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.
Or a near equivalent industrial cousin:
https://www.amazon.com/Mophorn-Polyester-Pulling-Arborist-Gardening/dp/B07M9X3NBS

Someone translated to English a little too literally. Read the first sentence of the description (starts with [ATTENTION]). ???


That is just plain old nylon/polyester rope. It doesn't have 1/10th the strength and chafe resistance of Dyneema.

Check where it says breaking strength for 1/4 inch Dyneema is 8600 pounds.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

or 1/4 inch Amsteel, breaking strength = 7700 pounds. 30% stronger than steel cable.

http://www.amsteelblue.com/amsteel-blue-1-4-synthetic-rope-by-the-foot-7-700-lbs/

.

Title: Re: Surfboard Leash String - what to use?
Post by: RideTheGlide on May 14, 2019, 05:23:34 AM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.
Or a near equivalent industrial cousin:
https://www.amazon.com/Mophorn-Polyester-Pulling-Arborist-Gardening/dp/B07M9X3NBS

Someone translated to English a little too literally. Read the first sentence of the description (starts with [ATTENTION]). ???


That is just plain old nylon/polyester rope. It doesn't have 1/10th the strength and chafe resistance of Dyneema.

.
My bad - I thought Dyneema was a "standard" sailing line. The cable pulling stuff is the cheap variant of that - no stretch and strong enough for most applications. It does have excellent chafe resistance as the industrial application is pulling it through long sections of pipe, often with several elbows. It would be more than adequate, but not ridiculously more.

Title: Re: Surfboard Leash String - what to use?
Post by: Bean on May 14, 2019, 06:52:09 AM
Abraison is the enemy to the lowly leash string, so my advice would always be to replace the string periodically.  My local surf shop keeps a bowl of free leash string on the counter (plain but good quality parachord).

I love Dyneema as winch rope on my Jeep, and while its absolutely fine to use as leash string, it's a bit overkill and perhaps offers some sense of false security.  (it does abrade and is subject to UV)
Title: Re: Surfboard Leash String - what to use?
Post by: supsurf-tw on May 14, 2019, 09:55:32 AM
Whatever you use, use 2. If one breaks or unties you have a backup. Make 1 slightly longer.
Title: Re: Surfboard Leash String - what to use?
Post by: spirit4earth on May 14, 2019, 10:22:58 AM
Once again, Iíve learning something from the Zone.  Iím gonna double my leash string now.
Title: Re: Surfboard Leash String - what to use?
Post by: Area 10 on May 14, 2019, 10:48:16 AM
Once again, Iíve learning something from the Zone.  Iím gonna double my leash string now.
I like surf SUPs that have double leash plugs and have them on my custom downwind boards also. I then use a separate leash in each, and run the leash attachment through both of them. If youíve also used a really high quality dyneema-core marine rope, you are then almost as safe as it is possible to be as far as the leash being attached to your board is concerned. It might be overkill for flat water, but I still do it anyway :) and of course, always for surf and downwind. Plus, double plugs can keep a coiled leash from dragging in the water more than a single leash attachment point can (if you tie it like I said). Just *donít* tie only one piece of string through both leash plugs. Use a separate string for each plug.

Itís dumb to risk your life or board for the sake of a couple of dollars.
Title: Re: Surfboard Leash String - what to use?
Post by: oceanAddict on May 14, 2019, 11:49:38 AM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.

 Thank you!   What size/thickness(?) is more appropriate? 1/8 ?  3/16?
Title: Re: Surfboard Leash String - what to use?
Post by: eastbound on May 14, 2019, 12:38:46 PM
https://www.google.com/url?sa=i&source=images&cd=&cad=rja&uact=8&ved=2ahUKEwiczdK64pviAhWoTt8KHZ_dCNgQjRx6BAgBEAU&url=http%3A%2F%2Fwww.leashlokhawaii.com%2Fleash-attachments---leash-belts.html&psig=AOvVaw2xvKjF6nw4UUxksywUPAhw&ust=1557949006972392
Title: Re: Surfboard Leash String - what to use?
Post by: Badger on May 14, 2019, 02:05:51 PM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.

 Thank you!   What size/thickness(?) is more appropriate? 1/8 ?  3/16?


I bought it at West Marine and didn't really notice the size. I think it's 3/16 but it measures 1/8 when you pull it tight. It's the same diameter as parachute cord.


Title: Re: Surfboard Leash String - what to use?
Post by: spirit4earth on May 14, 2019, 05:55:11 PM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.

 Thank you!   What size/thickness(?) is more appropriate? 1/8 ?  3/16?

The website says itís very slippery and hard to knot.  How do you tie it off?

I bought it at West Marine and didn't really notice the size. I think it's 3/16 but it measures 1/8 when you pull it tight. It's the same diameter as parachute cord.
Title: Re: Surfboard Leash String - what to use?
Post by: Badger on May 14, 2019, 06:29:11 PM

The website says itís very slippery and hard to knot.  How do you tie it off?


The website is probably referring to certain specific sailing knot applications.

I tie the loop the same as regular leash rope. It is a bit slippery and not easy to cut but the knot holds together just fine.

Run the loop through the plug and then through itself.


Title: Re: Surfboard Leash String - what to use?
Post by: toolate on May 15, 2019, 12:07:32 AM
whatever you use, please use one stronger than the fellow whose 12 footer took me in the head on a clean up set this morning after his leash string parted.
Title: Re: Surfboard Leash String - what to use?
Post by: maxsonic on May 15, 2019, 10:17:01 PM
Sean Poynter provides a good tip on how to thread your leash string to board and leash, to increase ultimate tensile strength.

https://www.youtube.com/watch?v=ElG-2uhNczk
Title: Re: Surfboard Leash String - what to use?
Post by: spirit4earth on May 16, 2019, 07:13:13 AM
Sean Poynter provides a good tip on how to thread your leash string to board and leash, to increase ultimate tensile strength.

https://www.youtube.com/watch?v=ElG-2uhNczk

I like that double loop idea, but A10ís advice to use 2 strings is easier because then you donít have to put the loop on the plug every time you go out.
Title: Re: Surfboard Leash String - what to use?
Post by: sflinux on May 16, 2019, 07:53:18 AM
Maxsonic, thanks the for the video link.
Amsteel is awesome stuff, I have used it for kitesurfing for over a decade and it has never let me down.
7/64" amsteel should be sufficient.  550 Paracord is probably sufficient for surfboards in small waves, but for SUPs, an upgrade is recommended.

550 Paracord Specifics
Size: Inches   Tensile Strength (lbs.)
5/32" (4mm)    550

Amsteel Size Specifics
Size: Inches      mm   Tensile Strength (lbs.)
7/64                    2           1,600
1/8                     3           2,500
5/32                   4            4,000   
3/16                   5            5,400   
1/4                     6            8,600   
5/16                    8            13,700   
3/8                      9            19,600   
7/16                   10           23,900   
Title: Re: Surfboard Leash String - what to use?
Post by: oceanAddict on May 17, 2019, 09:42:21 AM
Thank you for suggestions, everyone.  Got a few pieces of Dyneema in different colors last at WM. Man, this rope is like steel cable...Gonna use 2 loops in different colors to keep an eye on those. Superglue idea is awesome too...
Title: Re: Surfboard Leash String - what to use?
Post by: Badger on May 17, 2019, 01:21:36 PM
The glue was a great idea. I put a few drops of Gorilla Super Glue on my knots yesterday and they are never going to move now.

I have two loops on my Sunova and will add another to my TC. I prefer to put the loop through itself when attaching it to the plug. That leaves just enough room to slide a single strand of rope under it and tie those two ends together for the second loop.

.
Title: Re: Surfboard Leash String - what to use?
Post by: supdiscobay on May 18, 2019, 04:56:39 PM
A10 is right. There is no rope stronger than this stuff. It lasts forever and won't chafe. I really don't think it needs the polyester outer sleeve as A10 suggests. It will still outlast your board.

https://www.westmarine.com/buy/samson-rope--amsteel-dyneema-as-78-single-braid-sold-by-the-foot--P014895700?recordNum=3

.

 Thank you!   What size/thickness(?) is more appropriate? 1/8 ?  3/16?





Buy 1/8"

The 12' of 3/16'" I ordered came today and I replaced most of my boards leash strings.  It is too thick and very difficult to loop through some types of leash plugs, and difficult to to tie.






Title: Re: Surfboard Leash String - what to use?
Post by: WaveWashed Hatteras on May 19, 2019, 06:02:30 AM
A few years ago I tore the meniscus in my right leg, which is my leash leg.    This lead me to search for a waist harness, and I found http://www.leashlokhawaii.com/leash-attachments---leash-belts.html
 (http://www.leashlokhawaii.com/leash-attachments---leash-belts.html)  In addition to selling belts that can be attached to your existing leash they also sell leash attachments made out of tubular webbing sewn into a loop.   They come in 6 different colors and two widths, 3/8" or 1/2". I've been happy with them and with the waist harness which I wear on bigger surf days.
Title: Re: Surfboard Leash String - what to use?
Post by: oceanAddict on May 19, 2019, 10:08:11 AM
A few years ago I tore the meniscus in my right leg, which is my leash leg.    This lead me to search for a waist harness, and I found http://www.leashlokhawaii.com/leash-attachments---leash-belts.html
 (http://www.leashlokhawaii.com/leash-attachments---leash-belts.html)  In addition to selling belts that can be attached to your existing leash they also sell leash attachments made out of tubular webbing sewn into a loop.   They come in 6 different colors and two widths, 3/8" or 1/2". I've been happy with them and with the waist harness which I wear on bigger surf days.

Little off topic but.. do you wear waist harness for surfing or for flatwater/oper water paddle?  I used waist PDF as a waist harness and found it convenient not sure if I would like in surf conditions.

 
Quote from: supdiscobay  Buy 1/8" [/quote
   
 I went with 7/76  (pictured above) as it was on stock locally
Title: Re: Surfboard Leash String - what to use?
Post by: WaveWashed Hatteras on May 19, 2019, 10:36:55 AM
Quote
Little off topic but.. do you wear waist harness for surfing or for flatwater/oper water paddle?  I used waist PDF as a waist harness and found it convenient not sure if I would like in surf conditions.

For flat water I wear a waist PDF and connect the ankle strap from a coiled 8' leash around the belt.


For small surf, e.g. up to 4' faces, I guess that would be 1' Hawaiian, I use a calf harness.   When I fall I immediately fold my leg so by calf touches the back of my thigh to absorb impact of leash tug, this works well so far to date.

In bigger surf I use the waist harness.  It's basically a velcroed webbing belt that you attach to a regular surf leash by removing the alien head bolt that connects the cuff to the swivel and replacing with the waist harness.   When you fall the tug folds your body in half, but doesn't pull you under water.  It's very easy to recover from a fall and as someone who has had 5 knee operations, 4 on the left knee and 1 on the right knee it will hopefully allow me a few more years of snowboarding before I get the mechanical hinge installed.    I don't wear it all the time because it's a pain to have to clear the lease off the deck before remounting the board.   With the calf leash you can position the cord perpendicular to the board and it mostly stays there, if it rotates in line with your butt it's easy to rotate it back.   With the waist harness every fall will pull the leash directly behind you and it's a rash guard twisting mess to try and rotate it off to the side.  So when remounting the board the leash is usually lying in between your feet.   Best to push it off to the side before remounting, rather than standing a trying to kick it over or bend and move it over. 

I don't think I would trust the snap in buckle of a waist PDF to hold the force of a decent sized wave and wouldn't recommend that setup for large surf.   You could try it in the small stuff to see how the pull differs when centered at the waist.

Title: Re: Surfboard Leash String - what to use?
Post by: spirit4earth on May 19, 2019, 11:31:15 AM
Iím happy to see another NCíer on here, though youíre lucky enough to be at the OBX.  Iím in WNC.
Title: Re: Surfboard Leash String - what to use?
Post by: Night Wing on May 19, 2019, 12:54:52 PM
Since my Hammer and my One World have dual leash plugs, the video below is how I attach my leash to both of my boards.

https://www.youtube.com/watch?v=Uvsn5GQLPNE
Title: Re: Surfboard Leash String - what to use?
Post by: Badger on May 19, 2019, 04:04:19 PM
I'm guessing that is the 1/8th inch Spectra/Dyneema line Robert is using.

One concern I have about using rope that thin is that it might cut through the railsaver. I also don't like how the railsaver slides back and forth on the double plug setup which I would think might also cause chafe, But Robert says it works and I have to trust his experience. I'm sure he has seen every leash failure scenario ten times over.   :)
Title: Re: Surfboard Leash String - what to use?
Post by: eastbound on June 05, 2019, 11:49:37 AM
what wave washed said above

the leashlok "leash attachments made out of tubular webbing sewn into a loop" are a happy 3 dollars, and they are bomb-proof and clean--and require no knots/glue or fuss--to each their own but these are great by me

as, of course, are the waistbelts, which are all i use surfing
Title: Re: Surfboard Leash String - what to use?
Post by: JimK on June 06, 2019, 04:59:13 AM
I've used Dyneema Downhaul line and they NEVER BREAK (we are talking hundreds of board a year)
This stuff is amazing
JimK
Extreme Windsurfing
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