I’m looking for a KB to travel with; I have an unweighted I-rig 37 full sized keys but it is unweighted. Are there any short KBs that are weighted and about that size? Would be great to take on the road for practice.

No.

...and on a more constructive tone there's https://www.minetticustomkeyboards.com/ who make custom shortened versions of digital pianos.

Other that that there may be some 73 key versions of stage pianos from Korg or Kurzweil. I'm not sure of the latest status. And Yamaha has the P-121.

As for 64 keys Roland used to have the RD-64 but it's discontinued.

Wow, nice find!

FWIW, I bought a Yamaha P-121, which is a 73-key version. In the Yamaha carrying bag it's about 45" long and a touch shorter when set up. It's about 12" deep and about 7" tall in the back, though. To me, it has a nice weighted action.

Ray

The Korg SV2 is available in 76 key length, either with or without speakers. It’s not super light, but it’s quite playable.

Dexibell VIVO S1

It's possible to cut Fatar actions to make it short...
original link (german): https://www.bonedo.de/artikel/einzelansicht/hammeraction-to-go.html
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Dexibell VIVO S1 doesn't have a weighted action.

But in the end it may be a good compromise. Unless of course it's too large.

I've modified a M-Audio Hammer 88 keyboard down to 53 keys. I now have space for a full 88-key weighted keyboard, so would love to see this find a new home for someone. I reverse-engineered the design and shorted an off-the-shelf unit because I was unable to find anything available for sale - you can see a series of images here: https://www.jayavis.com/custom-keyboard