Joined: Mar 2014
Posts: 18,097
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From: ,location, location
Bikes: Foundry Chilkoot Ti W/Ultegra Di2, Salsa Timberjack Ti, Cinelli Mash Work RandoCross Fun Time Machine, 1x9 XT Parts Hybrid, Co-Motion Cascadia, Specialized Langster, Phil Wood Apple VeloXS Frame (w/DA 7400), R+M Supercharger2 Rohloff, Habanero Ti 26
You will be fine running 10 speed on an 11 speed crankset. However I would take off the Tiagra and upgrade to 105 because matching is good and if you are interested in power meters then having a more reliable groupset in a more modern flavor is a good thing.