Originally Posted by
marni
You will probably find that in addition to spin classes and exercises you will need to spend quite a bit of time on an indoor trainer. Mind numbingly boring and maddening as it is, there is nothing like your own bike and bike seat in a stationary trainer to use to build up TITS (time in the saddle) endurance. In this case,extended time at a comfortable cruising speed, resistance and a lot of good music or videos to keep you occupied are suggested.
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Riding the bike is primary exercise between twice weekly training sessions with a trainer at the gym so don't get to heavy handed with it but do try to build up at least a 2-4 hour TITS time with no speed onus or penalty but simply riding in the saddle in time extended blocks before you really ramp it up outdoors in the spring.