If you don’t mind my asking, what is your commute like? Feel free to just skip this if it will derail your thread too much. I’m just curious where you commute that’s so hard on tires. Just thinking about pushing around six pounds of tires every day hurts my back too. I’m glad I don’t have to deal with your commuting surfaces and ride those tires. I’m lucky to have fairly nice roads or paths everywhere.

How big of a tire does the Voyager fit? Assuming the Rock Hopper takes larger tires, maybe you can run a higher volume tire and the added compliance would allow you to run lighter, more supple, and therefore less harsh riding tires. The softer tires might help your comfort on the bike.