If your quads are getting sore, maybe you're mashing a bit as you get tired? Remind yourself to pedal in circles rather than just stamping on the pedal from 1 o'clock to five o'clock. I have to do this quite consciously at the end of long rides and it definitely helps with both fatigue and aches in particular muscles as it forces you to engage your whole leg.
If your quads are getting sore, maybe you're mashing a bit as you get tired? Remind yourself to pedal in circles rather than just stamping on the pedal from 1 o'clock to five o'clock. I have to do this quite consciously at the end of long rides and it definitely helps with both fatigue and aches in particular muscles as it forces you to engage your whole leg.