Regarding Treks, I'm subjectively unimpressed with the weight of their current line-up when I lift one. When we were sizing a new Emonda SLR-7 for my wife, I got to pick up some mid-level Madones and Domanes and was shocked at how heavy they felt. We had my wife's 2014 Amira with us and her bike was definitely much lighter even with her seat bag on it.
I'm going to be very disappointed if her new Emonda isn't at least as light as her Amira.
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Keep the chain tight!