mostly when they are hot after riding hard in the city...any tip/tricks to reduce this noise?

 

How many miles on your current pads? Did you recently change the pads? If you just changed them, did you check the tension clip, anti-rattle clip, anti-noise clip? IF any of those are worn, it could be your culprit.

 

i've got about 5000 miles on my 2010 wide glide i bought last sept

 

pull them off, apply some anti squeek or pad greace to them and put them back in, i use high temp on all bikes i put new pads on

 

You might have some brake dust build up... But you should still be in warranty. Take to the dealer and have them check it out. You should be due for a service anyway.

 

They could be glazed over, Just run a piece of sandpaper past ( you don't even need to take them off) them & knock the glaze off.

 

If they squeak after riding it in the city then ride it in the country instead.

Seriously though I'd try making sure the calipers are clean then try the grease like Joe mentioned. I did that to mine before I replaced the brakes and they are quieter than Richard Simmons at an anti gay rally.