Turkmenistan: MAJOR PITA. They only accept visas if you've booked a tour, otherwise you can get a transit visa with a high and seemingly random turn down rate. A turndown on the Turkmeni border will probably mean having to get onto a plane to Uzbekistan or on a boat to Kazakhstan.
Uzbekistan: around €90,- but pretty easy. Seems to be possible to order one in Istanbul and then to pick it up in Tehran (source)
Kyrgyzstan: free!
TLDR; getting a Chinese visa is going to be a PITA regardless of the route I'll take
Getting the suitable bike and gear
I'm going to take over @andy_k his Surly Troll, more info will follow :)
F-ing Visa Problems and Costs: the Southern route
TLDR; getting a Chinese visa is going to be a PITA regardless of the route I'll take
Getting the suitable bike and gear
I'm going to take over @andy_k his Surly Troll, more info will follow :)