Joined: Feb 2005
Posts: 13,560
Likes: 44
From: Milledgeville, Georgia
Bikes: 2018 Black Mountain Cycles MCD,2017 Advocate Cycles Seldom Seen Drop Bar, 2017 Niner Jet 9 Alloy, 2015 Zukas custom road, 2003 KHS Milano Tandem, 1986 Nishiki Cadence rigid MTB, 1980ish Fuji S-12S
You get to make your own choices. I try to keep my different bikes as diverse as possible. I think I would consider the two niches you plan to fill with the two bikes and decide which the current frame is best suited for and modify it to make it optimal for that purpose. Then I would analyze the second niche and decide what frame in my budget would best suit that purpose. That has never led me to get two of the same frame.