Do you have better wheels than the ancients' wheels?
No, the ancients are iron to do, do not worry about puncture
Cheerful wheels, because the tire has air wrapped, played a role in the shock and the protection of tires, the user is free from bumps, and greatly extend the tire life
Certainly good; society in progress ah; sure to good development
Yes ah, heavy weight, and run up relatively light ah!
Yes, the cheer of the wheel because of the pressure inside the gas can be deformed, so it has a shock absorption function, if the road is not flat, cheerful tires can effectively reduce the impact of the road, people ride more comfortable; and the ancient wheel Are solid, so once the road injustice, shook the powerful, sitting bumpy uncomfortable.
