Are round tires or flat ones better?

The Chang Jiang 750 sidecars do not lean on turns so flat tires are better and more economical. Solo Chang Jiang 750 should use round (radial tires) for better performance. It is advisable to not use off-road tires on the road due to their reduced traction on pavement. Are there differences in tires? Yes, wear, traction, width and price. Big Bill's Bikes tire prices range from 80rmb to 250rmb. Tires on a Chang Jiang 750 tends to wear out quicker because of the toe-in pitch of the bike with the sidecar. Some tires wear out faster than others, most of the better quality newer made tires on the back wheel will last around 5,000 km.  more