I've been experiencing a bit of left knee pain the last few weeks. I did jar it on a fell marathon in June, but then it went. I'm commuting on a Kona Dew Deluxe and the Q factor on this is at least 25mm more than my MTB which is about 10mm more than my road bike.

Is this what is aggrevating the knee pain?

Insufficent information for a (sensible) forum response. Suggest consulting an expert who knows what questions to ask (it's possible one will be along in the forum, but you get what you pay for on here…).