I'm trying to get my brothers & sisters to ride more with me. I bought my sister a Trek Navigator off craigslist last year. She likes it, but I notice that when we go as a group, she's much slower than my brothers & sister-in-laws who all have a Giant Cypress. They are all at about the same level when it comes to experience and fitness level. The Navigator is slightly heavier than the the Cypress and the tire sizing is different.
Is there a big difference or does she just need to pick it up?
Any help is greatly appreciated!