What do you think of this plan?

Mon- Off
Tues- Bike(30 min), shoulders, traps
Wed- Bike(30 min), Back, abs, biceps
Thurs- Off
Fri- Legs
Sat- Jog(30 min)Chest, abs, triceps
Sun- Off

Your critique, please. Have been lifting since Jan. 2001

I have been riding the bike 5 days a week but thought this might be to much and would affect Leg muscle growth not giving them enough rest.

Thanks again, Rock

I don't quite remember what your goal was but by doing that you will not gain any muscle size BUT you will for sure tone up. (Of course have a good diet)

What will keep me from gaining size? What should I do? I want to gain size but also lose some weight, maybe 8-10 lbs. Thanks,Rock

You will have to do one at a time. Cardio will keep you from gaining muscle size. You can first gain the desired muscle you want then lose all the fat. That is the best way to go.

Alright, a step farther. How does cardio keep you from gaining muscle mass? Rock

Well, in order to gain weight/muscle you must eat enough food and by doing cardio you are burning the necessary calories for building muscle.