I often read about folks wing stays snapping but there's not all that much information about where they break.

Is it at the curve at the top as they go under the wing itself, or is it at the mounting pint on the upright?

Also, I guess most folk will use round tube... is there a better alternative? Would a good quality flat-bar metal be any better?

Cheers.

I think it is the other way around, I have remade mine to get rid of the flat bar by replacing it with tube.

Mine kept breaking near the weld in the Heat Affected Zone. I replaced them all with 15 mm square tube with no welds It's difficult to bend but works

I think the MK ones are stainless tube on the verticals, squashed at the top end and then butt welded to a bent piece of bar.

Ours snapped twice on the passenger side either on or next to the weld (its hard to tell) - this wing always vibrated more than the drivers (guess it wasn't attached quite as squarely as the drivers side) so fatigued the stainless quite quickly. We braced across the corner on the under side with stainless bar to solve it.

Mine were flat bar welded to round tubes and they kept breaking at the join. I replaced them with all flat bar of a larger size (c. 1.25" x 0.25" from memory). No issues since then

Cheers!

Wings tend to flap - they are quite heavy, and supported only on one side - the amount of flapping depends on the rigidity of the stay. Any weakness or section change will concentrate the flexing into one area that will fail quite quickly. My nearside wing stays broke 3 or 4 times, probably because the kerb side of the road is much rougher than the middle (drain covers, poor maintenance, etc.).

I chose to support my wings on both sides (another story, told elsewhere) but if I hadn't I would have either gone for clamshells, or used a stay design that spread the flex along as much of the stay as possible.



[Edited on 13/5/11 by David Jenkins]

Do you have any photos of your set-up David?

I'd let you see my dax ones, but that would only give you ideas
(I'm sure you've already seen widz's ones....)

Never looked at them Robert...

quote:

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Originally posted by scootz
Do you have any photos of your set-up David?

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Great!

Thanks.