Joined: Mar 2014
Posts: 18,452
Likes: 6,761
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
It doesn't matter. You are unlikely to have lights on your bike while racing and if so you are likely in an MTB or gravel race. If you are on a road bike riding and need lights you need good lights with a good beam pattern and brightness and worrying about aerodynamics over safety is not the way to go.