bouncing center stand

Mark Savage said:

But they touch anyway, or at least the AN supplied one did and bent the spring enough for me to chuck it, buy a new one and make a proper, unthreaded “Pivot” bolt with a reduced head.

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Mark Savage said:

I just think the bolt head (or “set screw” as it turned out) is fatter than it should/could have been. There looks to be plenty of clearance now but in operation there isn’t much.

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o0norton0o said:

FIXED!

I fixed the problem by raising the spring hole up about 1". I made a doubling plate which bolts to the original plate through the original spring hole with a shouldered bolt so only 3/16" of the bolt actually sticks out of the hole to keep from interfering with the arm of the spring. The doubling plate is welded to an offset plate that realigned the extension plate with the original plate so the hole is still in the same plane as the original hole. As you can see the arm of the spring just barely touches the underside of the bottom gearbox bolt, but the angle has been increased enough to keep the centerstand from bouncing. I still have some music wire coming this week that is heavier than the standard spring wire, but I've already tested the stock spring raised 1" above horizontal and it works fine. I rode my test loop and it didn't bounce at all much less bounce down and hit the pavement... I still may make the heavier spring. I'm also going to zip tie a piece of rubber where the stand hits the frame because it returns to the up position with a vengeance now...


the original spring hole is the allen head bolt in the picture. The extension plate is sculpted to fit the shape of the original plate, so the doubling plate only needs a single bolt through the original hole to fix it in place.

View attachment 119572

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