KYB mono gas for Datsun 510/1600

Mono-tube High Pressure Gas
A shock absorber or strut can be a high pressure, mono tube design. These are a more modern type design, and have characteristics of their own. The monotube design allows them to operate cooler. Monotubes are under high pressure, from around 200 psi, to as high as 360 psi. The hydraulic oil and Nitrogen gas are in seperate chambers, seperated by a floating piston. This allows the shock/strut to function without any aeration or foaming. Monotube shocks usually have a stiff valving, and traditionally cost more to manufactuer. The are also able to withstand more punishment, and offer higher dampening ability. (for instance, most racing shocks, from Nascar to Formula One, are of a monotube design). Great care and engineering is taken into consideration when manufacturing a monotube, and many have a very specific valving. This is years of racing technology adapted for street and offroad use. Some of the companies that make monotube shocks are Bilstein , Edelbrock, and KYB.