just looked at the BC and theyve changed stuff.
Stock comes with a one by, which is hip and up to date, but the old double was more versatile. I mean, on a bike like this, whats a few hundred grams?
and the BC is 700 wheels, which is fine, but the 26 troll wheels have some advantages, and the (used to be anyway) 36 spoke troll wheelset is probably tougher, but that depends on what you plan to carry of course. I use 32 spoke wheels on my troll and its been fine fully loaded, but lots of factors come into play here on this subject.

hey, stuff always changes, just looked at newest Troll and they changed crankset to an octalink bb, my wifes from 2017 has a hollowtech 2 outboard...weird.
but most other stuff seems same from a few years back, crank, wheelset etc