Ensure that your legs are working for the full length, by raising the seat as much as you can, to avoid problems with joints
Raising your seat isn't the first step: first make sure that you're pushing the pedals with the balls of your feet, not close to the heel. I used to get terrible knee pain during prolonged bike rides as a kid, and nobody could tell me why.
It took me many years before I finally figured out what I was doing wrong: if your feet are too far forward on the pedals, you effectively lock your ankles in place, and all propulsion must come from your upper legs through your knees. If you can bend your ankles, you have two joints and three sets of muscles to share the load. This gives you better range of motion and less muscle strain for the same amount of propelling power.
If you ride in winter conditions, lower the bike seat until you can reach the ground with the tips of your shoes instead
Raising your seat isn't the first step: first make sure that you're pushing the pedals with the balls of your feet, not close to the heel. I used to get terrible knee pain during prolonged bike rides as a kid, and nobody could tell me why.
It took me many years before I finally figured out what I was doing wrong: if your feet are too far forward on the pedals, you effectively lock your ankles in place, and all propulsion must come from your upper legs through your knees. If you can bend your ankles, you have two joints and three sets of muscles to share the load. This gives you better range of motion and less muscle strain for the same amount of propelling power.
If you ride in winter conditions, lower the bike seat until you can reach the ground with the tips of your shoes instead
This is the correct seat position all year round.