So, I read a review of the Fouriers Quick True Tool. I love the idea, but availability (at least in the US). In fact, I haven't found anywhere that it's available, including on the Fouriers website. So, some questions...

1) Are there any tools like that out there other than the one linked? I'm going for something I can put in my packable tool bag.
2) Are there any mounts similar to the one used by Fouriers-- just the base with the two straps-- that I could use to put something together of my own?
3) Are there any other ideas I should consider? I know that zip ties can be used for this, and while they're readily portable, I'd like something that improves on the on-the-trail ease of adjustment and precision.

Thanks in advance for any thoughts.

Kind of a neat idea, but unnecessary.

If you have rim brakes, you can either use your brakes as guides, or put your thumb on the brakes and feel the wheel movement.

I've used one hand to hold something against the wheel. Not the quickest maybe, but simple. A bic razor handle sings when it hits the rim.

There have been pictures of people using popsicle sticks and rubber bands to do the same thing. You might as well start your repair with a refreshment.

Removing the tire may aid with analyzing the hop.

Not rim brakes... this is something I miss about those, though. The built-in truing stand is nice. But, perhaps I'm overthinking it? Just some different-sized rubber bands (perhaps the sort for bike light quick disconnects), a taped-over 1.5" bolt and a nylon screw (to prevent scratching)... hmm...

Didn't know about the Bic handle.. I have one, have to try that. Thanks.

Zip ties , get reusable ones... they can be your reference guide.

I was going to whip up something like that on a basic desktop 3d printer.

Instead I ended up starting with zip ties and finishing with a magnetic mount dial indicator since I was using an undersized steel frame as a stand.

But I think 3d printing something could work - it's a low stress item with moderately complex geometry, which is about what the technology is good for.

I just hold a dry erase marker progressively closer and closer, using a fork or chainstay as stability, until it lightly touches the bad part of rim. Leaves a nice mark on the out of true bit that aids in adjustment. When done, wipe away and start again until true!