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by Herman
Tue Oct 29, 2019 9:24 pm
Forum: Kitesurfing
Topic: mystic stealth bar
Replies: 136
Views: 14999

Re: mystic stealth bar

... that the tension in the runner will be T/2 X 1/sine ∆ where ∆ is the angle subtended by the runner and the line of the 2 attachment points. For my Dynabar which is ~ 230mm long with a line reaching ~30mm from the line of the attachment 1/sine∆ is ~4. Therefore when my 200lbs is hanging on the harness ...
by juandesooka
Fri Oct 18, 2019 6:32 pm
Forum: Kitesurfing
Topic: Ring for RideEngine rope spreader bar
Replies: 22
Views: 1341

Re: Ring for RideEngine rope spreader bar

my issue is I use a tethered self launch, so attaching chicken loop to the rope or to a ring doesn't work well. I used the sliding mechanism from dynabar, which works great, but eventually it broke. Now I use a locking carabiner -- which also works fine, just have to make sure it has rounded smooth ...
by Sgallian
Tue Sep 24, 2019 1:02 pm
Forum: Kitesurfing
Topic: mystic stealth bar
Replies: 136
Views: 14999

Re: mystic stealth bar

... as it is part of the spreader bar, so if you think you may want both options buy the fixed hook. I used to use both a hook and sliding rope on my Dynabar and it worked fine, just make sure the rope is above the fixed hook so it doesn't get caught up. Has anyone really tried to add the "Stealth ...
by iriejohn
Mon Sep 09, 2019 12:39 pm
Forum: Kitesurfing
Topic: mystic stealth bar
Replies: 136
Views: 14999

Re: mystic stealth bar

... It is a 6mm stainless steel shackle onto which is welded a 25mm x 5mm stainless steel round ring. The wheel is the same as the original Jaystore Dynabar pulley wheel. Any size ring could be welded onto the shackle but I find 25mm (1") works fine. Virtually no rope wear of course. https://www.dropbox.com/s/5ua48gqjthjpnwa/20190909_094301.jpg?dl=0&m= ...
by iriejohn
Mon Sep 09, 2019 10:01 am
Forum: Kitesurfing
Topic: Ring for RideEngine rope spreader bar
Replies: 22
Views: 1341

Re: Ring for RideEngine rope spreader bar

... It is a 6mm stainless steel shackle onto which is welded a 25mm x 5mm stainless steel round ring. The wheel is the same as the original Jaystore Dynabar pulley wheel. Any size ring could be welded onto the shackle but I find 25mm (1") works fine. Virtually no rope wear of course. https://www.dropbox.com/s/5ua48gqjthjpnwa/20190909_094301.jpg?dl=0&m= ...
by Kamikuza
Sat Aug 31, 2019 1:33 pm
Forum: Hydrofoil
Topic: Sliding spreader bar dimensions
Replies: 23
Views: 1657

Re: Sliding spreader bar dimensions

... So answer is everybody want A as tight as possible and B is very personal I don't want A as short as possible :D I tried a low-friction ring on my Dynabar and hated the contortions necessary to sheet right in. Went back to using the sliding hook and am happier. Also got tired of figuring to adjust ...
by Herman
Sat Aug 31, 2019 12:05 pm
Forum: Hydrofoil
Topic: Sliding spreader bar dimensions
Replies: 23
Views: 1657

Re: Sliding spreader bar dimensions

A = 22mm, B = 230mm a version of the Dynabar. A measured to centre line of rope. I minimised A by inserting a separate 3mm core after the main line was installed. I took the core out to a separate tie down point. I also use a pulley hook as ...
by Herman
Thu Aug 29, 2019 9:00 pm
Forum: Kitesurfing
Topic: Sliding spreader bar for Mystic Warrior harness
Replies: 3
Views: 466

Re: Sliding spreader bar for Mystic Warrior harness

I have a Dynabar that fits that strap configuration but I am not sure whether they are still going. I got mine from Blast kitesurfing in Porthcawl, they will know whether they are still available. They are on line, but in UK.

Good piece of strong kit if still available.
by ichabod
Thu Aug 15, 2019 10:03 am
Forum: Kitesurfing
Topic: Questions on Mystic Stealth bar
Replies: 44
Views: 3860

Re: Questions on Mystic Stealth bar..

To be Honest I would expect some level of safety testing to be done on harnesses and chicken loops and a very visible warning given if certain combinations are dangerous. Case in point is the metal D loop on the J Dynabar. Seen deathloops happen with the chicken loop jammed in that before.
by iriejohn
Wed Aug 14, 2019 12:26 pm
Forum: Kitesurfing
Topic: Questions on Mystic Stealth bar
Replies: 44
Views: 3860

Re: Questions on Mystic Stealth bar..

... rope version (medium) which is on my Ion Echo (large) seat harness. Fits fine and is really stable, and is also a huge amount lighter than my Dynabar slider which is pretty much destroyed. I took the back off to have a look (4 x 2.5mm hex bolts) and the rope is dead easy to replace. All that's ...

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