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.
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. Press-fit bearings are now also used on all new AMS lineup, as well as on the Elite Super HPC.
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.
21 INNOVATION CENTER
Normal thru axle systems function by compressing several treaded connections. Also no fixation points are available which makes repositioning the rear wheel a bit of “trial and error”. For the rear axles in our Dual Trail Control 4-link bikes, we use the Syntace axle system. This has a 12mm axle diameter and is 142mm wide. In this system, a cone is used to form a play-free connection. It is only necessary to tighten the axle from one side. (Re-)Positioning the wheel is done by an insert in the right hand dropout which is secured by a bolt. 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
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. Also see page 66.