Hello

I am looking to build an endurance gravel bike with 1x/transmission. I am eying the GR048 frame. They currently only offer the M size with UDH, but with 179/83 that should fit okay.

http://www.tantancycling.com/index.php?_m=mod_product&_a=view&p_id=1094

Would love if you can help with 2 questions:
1. Geo seems nice slack ST/HT with 74/71. Anything i am missing on fit for a touring gravel?
2. Has anyone tried this frame with SRAM transmission? Chainline?

Thanks for your help!