With it s unique splined core TFXTREME delivers unparalleled smoothness and efficiency - with hardly any lost motion - even in the longest and most complex cable routings. This gives superior feel at the control, performance that until now was considered impossible . Traditional cables vary by the stiffness of the core wire and how tightly it fits in the casing. Thus the classic trade-offs that have existed in control cable design: Stiffer core/tighter fit offers less lost motion, but is harder to move. With longer and more complex runs, cable movement becomes progressively more difficult. More flexible core/looser fit has an easier feel, but allows more lost motion. This approach leads to an overall sloppy feel, RPM loss or difficult gear engagement. These trade-offs aren t an issue for cables with TFXTREME technology because they are different - really different! Teleflex s unique TFXTREME technology incorporates a patented splined core. Ridges on the core allow a close fit with the cable s inner liner, but with minimum contact, so the core glides back and forth smoothly like a skater on ice. RESULT: a control cable with easy movement AND minimum lost motion.