If you have a National Cycle or ZTechnik product and no instruction sheet, or if you've lost the original instruction sheet, you can download one right now.
Go to SHOP in the main menu above, which will prompt you to select the make, model and year of your motorcycle. The results page will list all the accessories available for that bike. Select the product you own. The product page will have a link to the instruction sheet PDF file labeled "INSTALLATION" under the main product photo.
Click on the link and print the PDF file from your browser, or save the PDF file to your computer for later viewing.