The mount of the headlight works best with round handle bars but I managed to fit them on my aero bars near the clamp. The headlight itself is very bright and the 1300 lumens seem to fit (compared to a 1000 lumens Towild headlight and a 900lm Anker flash light). The only thing I am sceptical about is the USB charging port rubber cover which is far worse than the one on the Towild. It is very flimsy.