Both the Honda CB650R and the Yamaha XSR700 are excellent motorcycles that can serve well for open road commuting and touring. However, considering your preferences for reliability, comfort, and being a tall rider, there are a few factors to consider:
Ergonomics and Comfort: Given your height of 6'4", it's important to choose a motorcycle that offers a comfortable riding position. The Honda CB650R features a slightly more aggressive riding position with slightly forward-leaning ergonomics. On the other hand, the Yamaha XSR700 offers a more upright riding position, which may be more suitable for taller riders seeking comfort during long rides.
Power and Performance: Both the CB650R and the XSR700 are powered by four-cylinder engines and offer ample power for open road commuting and touring. The CB650R has a slightly larger engine displacement, while the XSR700 has a more classic, retro styling. Neither bike is designed for super-fast speeds or aggressive cornering, making them well-suited for relaxed, comfortable rides.
Reliability: Honda and Yamaha both have reputations for producing reliable motorcycles. Both the CB650R and XSR700 are built with quality components and are known for their dependability. Regular maintenance and adherence to service intervals will help ensure long-term reliability for either option.
Given your emphasis on reliability and comfort, the Yamaha XSR700 may be a better choice for you. Its upright riding position is generally more accommodating for taller riders, and the classic styling adds to the appeal. However, it's important to sit on both motorcycles, preferably during a test ride, to assess the comfort and ergonomics firsthand.
Ultimately, personal preference plays a significant role in choosing the right motorcycle. It's recommended to visit dealerships, take test rides, and consider factors such as comfort, ergonomics, styling, and any specific features that may be important to you before making a decision.