reduce the amount of noise generated

reduce the amount of sliding resistance

can deal with movement of the suspension both vertically and in other directions

improve the force transmission speed

Camber

Caster

Toe

Steering gear ratio

vibrations on the steering wheel

engine power during acceleration

torque that is transmitted by the tyres to the road surface

stopping distance in case of emergency

grip the road and provide good traction

substitute for springs

act as brake

none of these

tube type and tubeless

solid and tubeless

air and pneumatic

split rim and drop centre