Chain clicking on cassette
Hello! I recently bought my first real bike and I am still very new to the hobby so pardon me if the question has an obvious answer. I tried googling it to no avail.
I am getting a clicking noise which sounds like it's coming from the chain on the cassette but this only occurs when I shift up (from smaller cog to larger one) When I shift down it never seems to occur, quiet as a mouse. So to effectively ride quietly I have to shift past a gear and then back down. The clicking noise eventually goes away after about 30 seconds or so of riding if I just leave it. It's getting a little annoying to have to shift past a gear and then back down or to just ride with a clicking noise for a bit. Any help on how to straighten this out would be greatly appreciated. It was purchased new from a Trek store and was given an out the door tune up not even a week ago.
It's a trek 1.1 with a Shimano Claris groupset.