Cruisers such as Harley-Davidsons represent the fastest-growing segment in motorcycle sales and the Twin-Cam engine is used in many of the most popular Harleys on the road today. None of these bikes remains in stock condition. Owners personalize and customize them and most Twin-Cam models receive performance upgrades such as aftermarket pipes, brake and suspension upgrades and engine modifications. Respected motorcycle journalists Chris Maida and Mark Zimmerman present 101 projects an owner can consider or undertake to customize a bike's power, ride or styling. They cover basic regular maintenance and cosmetic customizing as well as more-complex performance projects such as suspension tuning and working on the electrical system. Color photos showing each project in step-by-step fashion make it easy for readers to undertake projects themselves.