bedtime

The stem is for a BMX with a 25.4mm handlebar (31.8mm might be acceptable, but I'd have to get new handlebars). I'll be doing tricks on it that involve putting the whole of my weight on it—150lbs—such as bar stands. I won't be doing any jumps, hops, or drops with the bike.


Here is what I've found so far:

Crupi:

The apparently can only take a 90 lb rider. Nonetheless, they seem to have been discontinued.



LDC's stem also is only good for 90lbs:


Anyone know of a stem better designed for my weight? It must be zero reach.

Tiny1990

maybe some downhill brand? the ones ive seen are usually for a junior or mini.

bedtime

By downhill brand, do you mean a company that went out of business? And yes, they all seem to be rated for children.

As to such companies, I found that Fishbone made an awesome stem, but it is nearly impossible to find and buy these days:



But, I think a 90lb rating for the cheaper stems might actually be for regular, high BMX handlebars, such as:



These handlebars are at least twice as high as the ones I'm using (below). Being at least twice as high, I gather they would have about twice the leverage as mine, and half the rating (e.g., the same stem with my bars would be rated at 180 lbs):



My handlebars are only 6.5" high, so they would require much more force to move against the stem. Even that crappy aluminum stem that you see on my bike, which is held on by one screw, has been solid and withstood crashes without so much as budging. It's never been re-tightened. And I've bar sat and rode backward for hours on that stem. So, the initial stems I posted might just be good enough for what I'm doing.