hi, my first thread here, i got into cycling properly about 4 months ago, and just upgraded to a road bike (not used it yet). On my hybrid when i return, even from huge trips, i find i am not really tired at all, and can go about like normal, which makes me think whether i am pushing myself enough, or just taking it too easy. i don't really think i have that much more performance in me, i would guess i travel at 13mph on my hybrid when i do rides less than 50 miles, but on my new one i did .7 miles really quick and did 18 average without pushing at all, not really sure. any advice, anyone? thanks. i'm 17, too if that's relevant.