Using your Tarmac SL7 Comp 105 Di2 is a breeze. First, adjust the seat and handlebars to a comfortable position. To shift gears, simply use the Shimano 105 Di2 electronic shifters. It's smooth and quick, so you can focus on your ride. When riding, make sure to check your tire pressure regularly. The Turbo Pro 700x26mm tires should be inflated according to the recommended pressure on the tire sidewall. For maintenance, clean your bike after each ride, especially if you've been in wet or muddy conditions. Use a mild soap and water to clean the frame, gears, and chain. After cleaning, dry the bike thoroughly to prevent rust. Every few months, you may want to take your bike to a professional for a more in - depth tune - up. And always store your bike in a dry place to keep it in top condition.