Suspension

A Motorcycle Suspension System consists of a spring coupled to a viscous damping element, a piston, in a cylinder filled with oil. The piston smooths out vibrations induced by the vehicle while moving as it moves through the oil. The flow of oil through the piston is regulated by an adjustable elastic deformable flap called a shim.

Types of Motorcycle Suspension

• Front Suspension: The predominant type of front suspension is the suspension fork. The bottom part of the fork is fitted over the tubes that connect the fork to the frame. When the vehicle hits a bump, the spring gets compressed and the piston forces fluid through the orifice.
• Rear Suspension: Most of the time the rear suspension are used as a shock absorber.

Both these two types of suspensions contain two essential elements: a spring and a damper which are collectively referred to as a shock absorber.

Functions of Motorcycle Suspension
The main functions of the motorcycle suspensions are:

• To insulate both the rider and the bulk of the machine from road shocks. It makes a much safer and comfortable ride and is important for proper mechanical reliability and longevity.
• To keep the wheels in the closest possible contact with the ground and gives control of the vehicle to the rider.
• The front suspension helps to guides the front wheel, to steer, to spring, to dampen, and to provide support under braking.

Materials used for making Suspensions
The materials most commonly used for making suspensions are:

• Steel
• Aluminum

Maintenance of Suspensions

• The suspensions should be checked for loose nuts and bolts and leaks.
• The swing arm bearings should be lubricated monthly.