TRASMISSION KIT KTM SX 85 2005-2012 RK EXCEL 428MXZ4070K2095E Z14-46

The RK chain kit comes to the market as ideal solution for rear drive system with homogeneous quality among their components, perfectly interchangeable with the stock one, and with a huge variety of sprockets ratio options and prices, either for Road and Off-Road. RK chains and MX Positivo sprockets, exclusive equipping of the RK Kit, have been optimised by the years of collaboration between RK Japan and MX POSITIVO Thanks to their research and industrial capabilities, sprockets main values, as profile, height and thickness, have been defined by introducing, yet still respecting the standards, those variable features that enhance the very high level quality of RK Kit. Even if RK sprockets can be used with other chains brand, and RK chains with other sprockets brand, their single performance still remains very high. The combination RK chain the best sprockets can yet provide the top performance in absolute security. A specific care is also devoted to selection of materials, which is always focused to the kit use, such as type of motorcycle for the application.