The Beringer Aerotec CNC radial brake master cylinder with master cylinder body machined from an Ergal 7075 block with 3D technology weighs 270 gr. only
The Beringer radial brake master cilynder are made of ERGAL 7075 completely machined from solid with numerical control machines.
This type of processing guarantees very high precision of the couplings and a structural rigidity of the pump unique of its kind.
the Beringer master cylinder is designed and built to be combined with the brake caliper BERINGER AEROTEC , ensures perfect braking management and a significant reduction in the effort required.
The lever of the radial brake pump is also completely machined from solid and adjustable in distance by means of a micrometric ring nut and technically differs from other brake pumps because it does not work by pushing the piston directly, but pushes through a lever on which it rotates by means of two ball bearings.
The leverage in turn works by pushing the piston through a third ball bearing which guarantees the least possible friction (obviously the friction is greater on pumps where the lever "crawls" on a pin).
The fact that the linkage pushes the piston not with a "pin" but with a bearing also ensures perfect radial thrust.
By reducing friction and mechanical tolerances to a minimum, Beringer radial brake mster cilynder ensure maximum modulation and motorbike braking precision; this means that for every millimeter more or less that the lever is pulled or released, braking will always be proportional.
The micrometric adjustment of the lever distance can be chosen in various sizes depending on the motorbike rider's hand size.
Furthermore, it is possible to independently adjust the intervention point by means of a grub screw that adjusts the limit switch of the lever.
Beringer Aerotec radial brake master cylinders are designed to be used on the race track but can be adapted to use on the road.
Many people believe that the radial brake master cylinder is only useful for racing use, but in reality the radial brake master cylinder are also very useful for road and touring use of the motorbike.
Many motorbike riders complain that the brake lever is very hard to operate, spongy braking feeling and not very braking sensitive.
The common people belief is that, with the radial pump, these characteristics are accentuated, but there is nothing more wrong to think it.
The radial brake master cylinder has a greater modulation, allowing to brake while producing less effort on the lever due to the mechanical "advantage" offered by the Beringer levers system and the position of the brake pumping element.
With the Beringer radial brake master cylinder, less effort is required on the lever to obtain the same braking power, braking becomes more powerful because the radial brake master cylinder has a larger brake pistons diameter than the original equipment brake master cylinder, which generally have a diameter of 10 or 12 mm. .
The Beringer radial brake master cylinder improves motorbike braking making it more powerful and more modular.
The size of this 17.5x12.5 Beringer radial brake master cylinder is especially suitable for the 4-piston Beringer radial brake caliper system.
You just need to get used to the lever stroke, which seems excessively long the first few times. In reality it is an effect intended to ensure very precise motorbike braking with a single finger even in the dirt road, where too aggressive behavior in the first part of the lever stroke could create major driving problems.
The radial brake master cylinder are produced in various sizes, usually by convention indicated in 19x20, 19x18 etc.
But what is the significance of these sizing?
The first value indicates the diameter of the pumping element and in radial pumps it is normally available from 16 to 19 mm.
The larger the diameter, the greater the amount of oil moved with the same lever operation. Large diameters = higher braking power, small diameters = greater modularity.
The second measurement, the one after the X indicates the center distance of the lever, i.e. the distance between the fulcrum, which in the case of the radial brake master cylinder this is represented by the pumping element, and the pin (or pivot) where the lever is fixed to the pump body. .
This distance is expressed in mm, the higher this measurement, the lower the leverage advantage, therefore a 19x20 pump compared to a 19x18 needs more force to apply the same power braking.