Make sure you are doing good pre and post exercise stretches. There are several different ways to do a quad stretch, so research it. Don't pull your lower leg tight into your butt as you'll do damage to your knee capsule.
Do ice after workouts. Get a styrofoam cup and fill it with water and freeze it. Tear off the top inch or so of the foam and use the ice to massage your quads. Start at the knee and push UP to remove swelling out of the legs. Keep the ice in contact with your skin, but only put pressure while pushing up from the knee to your hip. 20 minutes of massage is max.
Another thing you can try, which while I don't believe in too many ergogenic aids, is to try a pill called "Sports Legs". Surprisingly I have found this works quite well. It just helps reduce the buildup of lactic acid which can often be the cause of muscle pain. If all these don't work THEN I would try another bike fit to see if the first fitter got it wrong.
Link for Sport Legs. Or just search on Amazon
https://www.amazon.com/Sportlegs-Spo...4787277&sr=8-4