Evotech KTM 125 Duke Tail Tidy (2017 2023) Understanding the Cat C15 Acert Wiring Diagram. Evotech Performance have designed and manufactured the tail tidy with C. W. D ( Concealed Wire Design ). No modifications to your bike are required. Secured in place using existing mounting points. CNC machined from lightweight aircraft grade aluminium. Powder Coated black for longevity. The tail tidy design retains the OEM number plate light and indicators. No modifications to the wiring is required, simply plug and play. All required fixings are supplied in the kit. Easy to follow pictorial instructions are available to download. We are proud of our products and are so confident in our quality and value that we operate a no quibble returns policy if you are not completely satisfied.