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Understanding Vacuum Cups
Mount Evo products use the technology of high-performance vacuum suction cups. It will enable car owners to place and transport a bicycles or other sport equipment anywhere on the car body - simply and stylishly. You don't need any other carriers, crossbars, etc.
Our vacuum cups aren't in your bathroom.
They absolutely excel in adhesion to metal (steel - bodywork), plastics and fiberglass car surfaces.
The design of the vacuum suction cups is designed as a super fast and especially durable solution. 1 suction cup can withstand a pull of up to 100 Kg.
Activated using the plunger on the side, the vacuum cannot be broken without manually lifting the tabs on the cups.
The vacuum cups are made of polyethylene (HDPE), which is highly strong and durable, but at the same time soft enough to follow the rounded curves of the body. They do not leave scratches on the bodywork, are resistant to UV radiation and the effects of the weather.
Regardless of rain, snow or sun, our vacuum cups work as intended. Water acts as a lubricant aiding vacuum and doesn’t affect the force applied. Ensuring maximum vacuum even in adverse conditions.
Our vacuum cups are ultra strong with each vacuum cup rated to 100kg of holding force. When grouped together on Solo or Piste the combined holding force is 400kg and as much as 600kg for Duo, E-Solo and Sherpa.
Our vacuum cups are cross-compatible to save you money. Once you have a Mount Evo rack you'll never need to buy another full rack again, just a modular base. This is because you can transfer your vacuum cups from one rack to another.
Technical data
A basic theoretical vacuum force equation is as follows:
Ft = ΔP x A
Ft = 10 x (π x 3^2)
Ft = 282.78 lb (128.7 KG)
A = Area (πr²)
ΔP = Atmospheric - Vacuum pressure
Atmospheric Pressure = 14.7 psi
Vacuum pressure = 4.7 psi (approx)
Our 6 inch vacuum cups therefore have a theoretical break force of 128.7 KG.
This would mean that our Solo bike rack has a total theoretical vacuum force of 514.8KG (128.7x4).
The above information doesn't take into account external losses such as altitude and surface friction. However, it shows that our vacuum cups are incredibly powerful and more than capable of carrying your sporting equipment.
