Now tighten the nuts on both sides as shown in photos below. Please note in this step, you should tighten the nut on one side a bit and then tighten the other nut a bit and repeat the process until both nuts are fully tightened. While tightening the nuts, you should try to keep the tyre centred between the forks. If after the nuts are tightened, the tyre is leaning to one side more, please loosen both nuts and try again.
IMPORTANT: In this step the bike should not be on the kickstand as centring the tyre between the forks while the bike is on kickstand is difficult.
IMPORTANT: In this step the bike should be on the wheels (not upside down on the handlebars). The weight of the bike helps the tyre’s axel be fully inserted into the fork dropouts and makes the tyre be centred between the forks easier.