I've got a relatively new (~ 3 months old) road bike and whilst I'm riding I can hear a clicking noise coming from the bike. It seems to be when I apply pressure to the left crank. The bike is a Specialized Allez 2016, shown here.
Rotating the pedals on the cranks by hand, there doesn't appear to be any grinding from dust/grit ingress. Applying pressure to the pedals whilst the bike is stationary, there doesn't appear to any noises. There's no play in the crank arms when 'rocked' side to side. Rotating the cranks by hand whilst the bike is stationary, I can't hear the noise. I've removed by stem wiped and reinstalled along with the headset bolt, making sure not to over tighten the headset bolt. Bottle cages and frame pump bracket are secure on the bike, too.
I'm running out of ideas other than it being a bearing issue with the bottom bracket or the bearings in the pedals, but after such a short period of time, I find it hard to believe that they could have gone already - I've only done coming up to 600 miles on the bike.
I'm not sure how I can ascertain whether or not the noise if coming from the BB or pedals if I can't hear it when the pedals and/or cranks are rotated whilst stationary.
Anyone any ideas what I might have missed or more importantly how to troubleshoot further?