That's right... muscle gain/mass=low reps, high weight, muscle failure.. although you should wait 2-3min between reps... 30 secs between reps at 60% of max weight/high reps/lots of sets to tone, but not build large muscles.
Also, you have to switch up exercises for each muscle group for the best results... doing the same exercises over and over and they become stale... When starting to lift, work one muscle group once a week, anymore won't make any difference. Large muscle groups first, then smaller ones (ie. chest, back, quads, then bi's, tri's, etc)... tons of info out there on this kinda stuff... high protein diet, low carb is perfect for weight training, however if you're riding at the same time, then high protein after lifting if essential... watch your carb intake until you find a good balance to give you energy for riding, but not so much that it turns to sugar/fat.
Good luck! It takes a while to find what works best... key is always eat healthy... no sat fats, no processed crap... only healthy sugars (fruit)... lots of veggies