It is best to change the front end's bushing to ball bearing. And the stock steering shaft is plastic. It is better to change it to steering shaft. AR racing have this kit. For the spring if you are running the stock flywheel the spring set it as loose as possible. If you have to e-flywheel you can set it harder to increase the corner response.
The steering shaft pn x-036 and it come with rubber shield ball bearings already. I think the size is 5x10mm and you need 8 for one bike. This bike not too much option is necessary as a lot of the parts are very strong already. The only things I can think off is the steering shaft, e-gyro and maybe the wheelie bars.
