Large Scale Central

LGB Traction tires

I have a couple old LGB White Pass Alcos I need traction tires for.
Anyone know what size I need?
I would rather replace the entire wheel-axle-gear with a non traction unit, but I’ll just replace the tire for now until I find a used motor block assembly I can part out.

I have replaced the traction tires on both my LGB Alcos and my Moguls, I did purchase extras when I bought them as several came in the factory packs (4) if I remember. As far as I can remember LGB only used two sizes of traction tires on all their engines, the Alcos take the smaller size.

https://www.trainli.com/search/traction%20tires

Thanks! I didn’t know if I needed large or small.
Got a bag full from Trainworld.