Hello all.

Second year rider here with modest goals. Lose weight (currently 245) and increase speed (currently 13-14 on relatively flat rolling terrain).

I have been building base for 2 months now, riding when I can and in a gym when too cold. Keeping hr between 130-150 for 60-90 mins, 4 times per week. Riding between 75 mins and 3 hours now that it is warmer (in NC).

Question is, I have been told that when I switch from base to intervals (very soon), I MUST do the intervals on the bike.

Why? For that kind of measurable effort, I prefer the controlled environment of the gym. (Elliptical, stationary bike or stair stepper)

Any suggestions on how to succeed at intervals on the bike would be greatly appreciated. I have tried it once or twice and really did not enjoy it. I love riding, but structured training seems like no fun at all on a bike.

Thanks
Gregg