With all of the changes I've been making to my SB, one of the thoughts I had was to setup cranks for XC and DH so that I can swap them back and forth as needed. The front derailluer on the SB is totally independent from the frame, so I can just bolt it on as needed. I realized when going through that idea, that I have all of the parts I need to build a beater HT which I can pull the Burley with, sans cranks and fork. Cranks I can swap between bikes dependent on my ride type on the SB is easy enough, as I am getting them anyways. The only challenge here is a fork. Any suggestions for a beater 120mm fork that I can just throw on, but not worry about taking a dump on me? 99% of riding will be pulling the Burley, so not exactly rough.