I did the Kyrgyz part of this by bicycle back in 2008. http://daxfohl.blogspot.com/2008/08/stuck-in-bishkek-blues.h.... It was incredible, definitely the best part of the best trip I'd ever taken, but from these photos the Tajik part looks even better! (I diverted East to lake Song Kol and on toward Torugart pass instead -- I think Tajik visas were difficult back then or something). Now if I can only convince my kids to grow up and move out before I'm too old to do the Tajik part!