Joined: Mar 2014
Posts: 18,402
Likes: 6,729
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
I wouldn't put much money into a bike equipped with Claris or similar. Small things like consumables are fine, brake pads, cables and housing make sense but cranks not so much. I might buy pedals and saddles but those I can transfer to a better bike down the road but beyond that I would save the money.
As others have said a nicer crank won't stop frame flex.