Is there a shipping/freight company that can send my bicycle from Bangkok to Beijing?

I’m about to finish a bicycle trip from Hanoi to Bangkok, and unfortunately plans changed mid trip and now I can’t go back to Beijing (where I live) directly, instead I have to continue traveling for up to a l month.
That means I’m either stuck carrying a big box with me (not a great option) or hopefully there’s a shipping company that could send it to Beijing without having to pay more than what the bike itself is worth.
Shipping duration doesn’t matter since I won’t be on the other side to pick it up for a while.

View Reddit by omayya – View Source