The Yamaha R6 is a great option for comfort, as it is designed with ergonomics in mind. The seat height is adjustable, allowing you to adjust it to be comfortable for your height. The handlebar and footpegs are also adjustable, allowing you to customize the bike for your own comfort. Additionally, the suspension is adjustable, allowing you to tailor it to the terrain you're riding on. All in all, the Yamaha R6 is a great bike for long rides and can be tailored to your own needs for maximum comfort.