Neither build is done yet. I'm just soliciting any advice. On the first build I'm reducing the crank arm from 170 to 165 to help mitigate the effect. The increase in tire size makes up for ~almost half of the 19mm difference. I had experienced pedal strike when putting 700C wheels on my old Peugeot --which has made me genarally wary of pedalling thru corners. These are not fixies so it's not hugely critical but one goes to my wife and I'm not sure whether to warn her (and unduly spook her out of wanting to ride it :-)