Cube Frame Technology


Bicycles with the CUBE brand name are bearers of technology in which our claim for competence in technology and creative design are reflected.
For this purpose we develop for each bike category its own technology adapted to the demands of the particular product.

To cope with bending and torsional forces in the bottom bracket area, we have developed a 3D-box for our four-pivot Dual Trail Control layout. It is placed between the rear shock struts. It gives a very wide support for the sealed encapsulated industrial bearings of the bottom bracket resulting in a clearly improved lateral stiffness, a better response, and a better power transfer between crankset and the rear wheel. At the same time, the 3D-box carries the front derailleur as well as the fixing point for the shock.

The requirement for a continuously active and fully usable travel: The rear triangle is not affected by pedalling or especially braking forces. Regardless of the fact that a variety of other possibilities exists, we employ a four pivot chain stay construction. Here, one of the pivots is located between the dropout and the chain stay; this ensures that braking does not have a negative effect on the movement of the rear wheel. Thereby via the appropriate positioning of the remaining pivots, we obtain the finest riding qualities for our fullsuspension bikes in terms of uphill as well as downhill abilities.

In this system, a cone is used to form a play-free connection. It is only necessary to tighten the axle from one side. The main advantages of the Syntace system are: quick and simple changing of the wheel, a stabilised position of the brake disc, a higher stiffness of the rear drive train and a lighter weight compared to a conventional thru axle. The advantages of the Syntace through-axle system are: easier fitting and removal of the rear axle, stable brake disc position (thus less sliding) and improved rear assembly rigidity values. Hence the X12 weighs less than conventional through-axle systems.

The models of our Woman Like Series feature a compact frame geometry with shorter top tubes and longer head tubes. Therefore the riding position is more upright than on the men’s models. This riding position relieves the female pelvis and offers more comfort. The top tubes of the mountain bikes are lowered. This enables female rider a more comfortable way to mount and dismount.

With press-fit bearings, the outer bearing ring is pressed directly into the frame housing and not screwed-in as usual. With its wider housing, the down tube and the chain stays are joined with the full width. Because the width of the housing is a parameter in calculating the stiffness, every millimetre of additional width gives a significant improvement of lateral stiffness, whilst retaining the comfort-bringing resilience of the chain stays.

To join our Dual Trail Control link with the frame, we have developed a CUBE specific HAL – Hollow Axle Link. The FEM optimized HAL Hollow Axle Link is very light and rigid and optimally adapted to transfer the energy flow from the rear triangle. Very light bearings give additional lateral stiffness, and in longevity they compare favourably with roller bearings.

Joining our AMS/Size Tuned Kinematic rear train with the shock, we have developed our CUBE-specific 3D Active rocker. Next to its special three dimensional design this cold forged rocker has a very high specific density which gives it an extreme torsional stiffness.

To protect our high-end aluminium frames, they are built with the CUBE Frame Save System replaceable derailleur hanger. The thread is in the hanger and not in the frame as usual. In case of a crash, this hanger can be easily and quickly replaced by a new one.

Size Tuned Kinematic is a four-pivot suspension technology developed exclusively by CUBE. It guarantees that every frame in every size will have exactly the same dynamic properties for the designed and factual travel and response. To reach this, separate links had to be developed for each frame size.

Elaborative developed kinematics are only able to function correctly if the associated suspension shocks is properly tuned to it. Connected with the new Fox Float RP23 Boost Valve shock and the DHX RC4 shock, we could achieve the best optimised performance.

Our bicycles with RFR-geometry stand out by their sports character. The riding characteristics, rider comfort and rider safety in particular are taken in account for each individual bike category.

Dual Trail Control is the four-pivot suspension technology developed and improved by CUBE, which ensures a completely neutral behavior on the rear triangle when pedalling over any terrain.

Here particular attention has been given to the fact that irrespective of body size EVERY rider can have the optimum and identical riding experience. Here on a model-by-model basis we have differently designed the linkage geometry so that all frame heights have the same travel and suspension ratio (STK).In addition the kinematics have been optimised specifically to travel in respect of sensitivity, drive and no bossing. For this it was necessary to specially position all rear pivot points. Whether the rider is large or small, with any of these models he will always have the optimum ride experience.

Internally routed cables offer many advantages: clean appearance, cables are protected from dirt and therefore have a considerably longer life and the not required external housing saves weight.

The Postmount breaking absorption makes it possible for us to save extra parts. The not needed IS adapter with bolts saves approx. 30 g. This may not seem much, but it shows the potential comprised in the details.

These specially designed seat stays fulfil many roles. At the upper end at the connection to the seat or top tube they run laterally oval and thus offer vertical flexing and so ensure comfort. At the lower end they are extremely vertically oval and offer the minimum drag area to the headwind.

The novel DOUBLE FLEX STAYS offers plentiful comfort. The force flow from the seat stays here is diverted via two flat carbon plates to the seat tube. These plates operate by virtue of their special layup like shock absorbers in the vertical direction but at the same time are extremely rigid in the horizontal and lateral direction.

This new steering tube design is more rigid and generates a more secure ride feel even in difficult terrain. Due to the direct power transmission the greatest possible steering precision is generated. With the larger fork shaft the forks become more rigid. At the same time weight is saved due to the absence of bearing shells as the lower bearing is fully integral. On CUBE carbon models the upper bearing shells are also directly in the frame, so that once more a few grams are saved.

For optimum braking performance the ACTIVE BRAKE COOLING system supports the rider on the course. The headwind is ducted between the seat and chain stay onto the brake disc due to the aerodynamically designed stay. This protects the brake considerably longer from overheating and conserves the brake pads. The result is maximum brake performance.

We are not the first ones to present 29ers to the market. But it's only for 2012 that suspension fork manufacturers have been able to fulfil our demands concerning the geometry. We ran innumerable tests to develop the Agile Ride Geometry in our 2012 series of big wheel bikes. Two important details lead to the very agile character. Increased fork offsets let us achieve the same trail as our 26” bikes without having to steepen the head angle, thus maintaining generous toe clearance to the front wheel. Secondly we shortened the chain stays without compromising the seat angle. We invented a patented construction to mount the front derailleur to give us more tyre clearance while keeping a conventional seat angle, leading to a perfect riding position for every rider size. These measures lead to a natural riding position. Every mountain biker will feel immediately at home on a CUBE 29er.

The post mount brake mount is used on all hardtail carbon frames, high end trekking frames and all AMS models, enabling us to save extra parts. Dispensing with the IS adaptor and bolts saves around 30g. This may not seem much, but it shows the potential comprised in the details.

With our new Triple Linkage Geometry TLG, we can control the rate curve of the rear suspension as we wish. On long travel damping systems with short leverage it is difficult to control the rate curve and still use the full potential of the rear shock. With TLG we have the control to do this. The system works with three links. Two of the links control via the third link the curves of the shock pivot points. With the positioning and length of the links we have fine control of the curve of the damper compression to maximise the performance of the mountain bike chassis.