Steering wheel lifting issues

I am requesting some assistance. I recently restored an old Google bicycle featuring 24-inch rims. However, due to my height, the frame feels somewhat awkward to ride. My knees come dangerously close to hitting the handlebars, even though the bars are already raised to their maximum height. I would like to raise them further if at all possible.

I am wondering if it is feasible to extend this specific section by welding it (indicated by the red circle), or if there is a longer version of this threaded tube available for purchase at specialized bike shops.

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Any information you could provide would be greatly appreciated.

You might run into some trouble tracking down a stem like that—it’s an older design, and most modern bikes use completely different setups and mounting styles now. Honestly, your best bet is to hit up some local bike shops or specialized parts retailers and just talk to the guys behind the counter. Ask the mechanics what they know; if they don't have it in stock, they'll almost certainly point you toward the right supplier or a shop that specializes in vintage components.

... there are also pipes with adjustable angles (and maybe some riser adapters too, though I can't say for sure)...

Alexander Carter87 said:I’m looking for some advice. I recently restored an old Google bicycle with 24-inch rims, but there's a bit of a snag: I'm relatively tall, and the geometry just doesn't work for me. My knees are practically hitting the handlebars, even with the stem raised to its absolute limit. I was wondering if there is any realistic way to raise the handlebars further.

...

A small bike is a small bike. There isn't much you can do here; trying to raise the bars would be a temporary fix at best and would likely just prolong your discomfort. The frame is simply too small for your build. Sell it, give it away, or toss it in the trash—then go out and find, buy, or "liberate" a bike that actually fits your height.

That's about it.

Jeffrey Hall5 said:Sourcing that specific stem might be difficult. It's an older design, and modern bikes use completely different mounting systems and engineering principles.

A guy at the local bike shop told me the exact same thing. He mentioned that modern stems operate on a totally different principle. Fortunately, I managed to track one down at a different shop.
$33It’s a bit pricey, though the length difference isn't huge. I'll decide in the next few days if it's worth the investment, since this is just my second bike—basically a spare.