Headset bearings
 

What size are they? I am sure they are available somewhere, just not from the obvious sources.

Do you mean a Solace 20?

I'm skeptical that a propriatary bearing, headset, or otherwise would be developed for a single make/model of bike.

My guess, given a lack of information from a 5 minute Google search and a look at a picture is a generic 1 1/4 by 1 1/8 intigrated headset for a tapered steer tube. I could be wrong, it could be an 1 1/8 straight, not tapered. I am eyballing by picture here.

Pop the headset out, take a few measurements and come back to us. Or if not us, take the pieces to a local bike shop. You probably don't even need to identify the bike.

https://www.bikeforums.net/bicycle-m...t-bearing.html

I'm betting it's the same bearing.

Tom sends designs out, no factory .. of his own..

On the basis that this is what you have https://www.evanscycles.com/scott-so...-bike-EV224268

One of these headset bearing should work https://www.chainreactioncycles.com/...g/rp-prod62162

You can pull your old bearing, and check the specs either by looking on the side for the laser etched marking, or use a vernier caliper to measure them.

Choose you preferred supplier depending on your location.

You need to take the old ones to a bearing shop not a bike shop. Someone like this.
https://www.motionindustries.com/

I would go to Cane Creek and get your S.H.I.S. straight. They have a wonderful headset fit finder that has worked well for me in the past.