Hi: Think I've settled on getting a Trek 7.3 FX after trying out numerous different bikes & brands. I am 5'7" tall & a bit longer in the torso than in the legs. Have been told by two bike shops that I'm between a 17.5" & 20" frame.
Tried a 17.5 inch in the 7.3 and a 20" in the 7.2 (they didn't have the 20" in the 7.3). Neither felt dramatically different. Both were comfortable, but the 20" may have felt a tiny bit more comfortable.
My dilemma is that I can get a great deal a on a barely used 17.5", but will have to pay full price for the 20".
Is there that great a difference given that they both seemed pretty comfortable with the edge to the 20"? Don't want to end up being cheap & regretting the used bike purchase.
Will not be riding more than 30 or miles a week. Thanks so much for any advice.