Hi. Just bought a progression setup. With the 0 degree shim in, the recommended 16mm m6 rear bolt is too long, as is the 18mm front bolt. The 16mm bolt works for the front but I don’t have anything shorter than 16mm in the toolbag for the rear. I can get it to work with the -0.5 shim and 2 x 16mm bolts. Does the progression tail require shorter bolts?
I sometimes run into this with thin tails. the simplest answer is to make another 0 shim with an old credit card and stack it.
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I had the same issue and just ground the screw down shorter a bit with a vice-grip and grinder…3min fix
Good luck and careful not to shoot the screw across the room🤙
Im pretty sure the 12 mm are for the tails, and the 18 and 16 for the fuse to front wing bolts. At least thats what I do.
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Any definitive answers here?
Just getting a P170, med fuse, 14.5 prog tail and need to know what bolt sizes to use both for front foil/fuse and tail
Hmmm. If u buy th while setup, the bolts should fit. I would reach out to Uni.
I did reach out to Uni…rep didn’t know, didn’t express any interest in following up…and between that and the fact that this info isn’t on their website, my initial response is: WTF!
Seems to be 1) really basic info 2) straight forward to post/communicate, but I guess I’m missing something…do people take their foils to Home Depot and use trial and error to find the right hardware; do these specs change from batch to batch?
The tails use M6x16 with a T30 head.
The OP for this thread says that was too long on his setup, and that is with a 0 degree shim in…
On my Progressions I’m using M6X16mm with the G10 tails and Progression tails with shims from 0 to 2 degrees. On the fuse attachment I use M6X20mm for the forward screw and M6X16mm for the aft screw.
Unifoil and Houston Kiteboarding sell screw kits in titanium or stainless steel with everything you need.
funny… I saw those, but the Uni rep did mention he uses bolts “much shorter than what comes in our kits” but wasn’t sure exactly what length
Well this thread is timely. Just the other day I succeeded in putting a crack in my fuse using the standard bolt, which was evidently too long for the smaller shim.
@LPnw - bummer to hear that…but speaking of shims and bolts lengths…do I need to be running a shim (even if 0 degrees) at all times, or is a direct mount of tail on fuse OK?
I would use a shim if for no other reason than to fill the gap left between the fuse and the front of the tail that you’d have if you didn’t use a shim.
FWIW I know several people that ride takuma or other tails on the uni fuses without shims, and they don’t seem to have issues.
Im using 12MM bolts for tails and the 16 and 18 for the fuse still: Progression tail bolt size - #4 by beepityboppityboop
Works for all shims as far as I know. And I think you can mount directly without a 0 shim should be fine. These are the bolts that came with my complete kit.
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