Definitely would love the tern, but also looking for a bike that can sometimes carry an adult passenger so I would be going with GSD instead of HSD. The GSD is absolutely superior to the Fastrack. But where I am located getting a GSD with belt drive and enviolo hub will cost roughly $3000 to $4000 more than the fast track, which is certainly not nothing. Base line GSD would be $2000+ more than it. So my reasoning really was the Fastrack IS a copy of the GSD in terms of wheel and frame size, and I was trying to decide if the better motor system is worth that kind of money. Especially challenging because the Fastrack is new enough that the local shop only has it as a order to purchase, can't test drive it at all.