R100RS centre stand repair.

[gspd]

Great job Steve!
It seems to me BMW's have an unusually high instance of side and center stand deficiencies compared to other makes...

... but then I think of the many Ducatis that had their sidestands mounted to the engine case. More than a few owners returned to find their bike on the ground with a busted crankca$e in a pool of its own oil because somebody backed into it at the right (wrong?) angle.

[SteveD]

Finally done and on the bike.
Getting it onto the stand is much easier but the correct technique remains valid to ensure it's easiest.
Getting it off the stand is now very easy. I won't be using it with the bike pointed downhill at all. It'll be perfect for a slight slope with the front pointing up hill.

Procedure:
1. Welded the top of the stand so it was wider x 2. Tidied the welds up to a fitting "starting point". No welding was done to the wear points on the frame.
2. Fitted and refitted with the bike up on blocks, to allow the stand to swing. Repeated refashioning of the top of the stand to swing and fit and be positioned at a good angle. It started vertical before fashioning the tops of the stand. I only used one flapper disc for the whole procedure and it's still got life in it.
3. Removed 12mm from each vertical tube just below the crossover. I used an old steel railway sleeper nail, cut to 40mm x 2 pieces then lathed to fit inside the stand. Welded into position as inner support, then the opposing ends were chamfered and welded together.
4. Paint with anti rust stuff then a coat or two of satin black.

I'm happy with the current use of the stand. The front wheel remains 2.25" off the ground and on flat ground will balance almost equally front to back.





Thanks to ME 109 for the motivation!

[barryh]

I'm happy with the current use of the stand. The front wheel remains 2.25" off the ground and on flat ground will balance almost equally front to back.

That's pretty much how I ended up when I fettled my stand. Even the MOT tester used to comment on how easy and well balanced it was. As a preemptive measure against the tubes wearing through, I also welded some stainless steel strips onto the curved surfaces of the tube that rolled on the ground and then blended them in with an angle grinder so you can hardly tell they are there.

Even without wear, BMW erred very much on the side of stability. I was happy to swap some stability for ease of use and consider sorting the centre stand as the most transformational thing I've done in terms of improving the bike.