These are the hawk 250 shinko 244 tires I use for my bike. You can see my install guide on this page https://hawk250.com/installing-shinko-244-tires-hawk-250-dual-sport/ You can see the tire sizing guide also linked on the above page.
Front – Tire Size:3.00-21 51L
Rear – Tire Size:4.10-18 60S
Dual purpose street and trail design DOT approved Tube type 4-ply rating Designed for front or rear fitment