Spinning Vs Bike

Hi Erick,
I have been teaching spin for over 5 years. It is a good compliment to your training, but it doesn't truly replace good time in the saddle. Unfortunately, you can never quite get the same positioning as your bike on the spin bike. Also, you don't have to use your core muscles while on the spin bike because the bike balances itself. It is better than nothing and it can improve your fitness, but I wouldn't recommend it as a replacement for being out on the road. Hope this helps. RJK

I think it can replace some of your trainer time, but as rkerperien mentioned, there's nothing like being on the road. However, if that's all you can do, it is for sure better than nothing!

Agree about road time, vs indoor trainer/spinning bike time. But, there is a good series out there called Spinervals, that I purchased a few years back. I've loved it for the times when it's raining, etc. Coach Troy Jacobsen is an Ironman and triathlete coach, and his series shows people using trainers, and he is 'coaching' them through a series of tough routines. Check it out online, it's a great way to improve speed and stamina. Not many good follow along type of dvd's out there for cyclists.

I would say the bike. Both on road and on the trainer. I have done and have some great trainer workouts that help build power and endurance while keeping you safe from the blue haired ladies in your garage!!
Spin Class is a fun thing to mix in during the off-season, but for overall traithlon fitness, Id stick to the bike or trainer.
Just my 2 cents.