Let me start off by saying that I've done a good amount of searching on this topic and have found some interesting sites with good information, but most of it is for bodybuilders and weight lifters... which I am not. They all say to put a lot of emphasis on lifting and leave cardio basically out of a workout. That's fine for them, but my I'm a XC-mtb racer, so leaving cardio out of the picture is obviously not my ideal way for me to gain weight.
I am 17 years old, 6'1" (186cm) and tip the scale at a little less than 138lbs. I have virtually no fat on my body. How can I go about gaining weight without having to let up on the cylcling. I'm know that diet will play a huge role in it, but I just don't know what to eat. I don't want food that will be bogging me down. I don't expect to become huge, or even get to a point where I'm not considered skinny but right now I feel like my lack of weight and muscle is hindering my performance on the bike. Any information that you guys need on my lifestyle and I'll be happy to give it to you, I'm just not sure what I need to tell you. I ride 6 out of the 7 days a week, almost always pushimg myself in a ride unless it's a recovery ride.
Any input is much appreciated.