ergo bike,wind resistance vs wheel resistance

[RoadRaven]

Yeah, my TXR is clamped into the stationary trainer, and we just have a short bit of 4"x2" sitting under the front wheel. We used to have two phone books, but they get kinda messy after a while

And like Spazz says, popping your road bike on there is really easy - Less than a minute to clamp in or out -
Sometimes my partner uses the trainer (very rarely, he dislikes stationary training) he pops his bike on cause the TXR is way too little for him and the seat post cannot be moved far enough up to accomodate his leg length.

If you are worried though, just pick up a cheapy second hand that you can set up to the same specs as your regular bike. You can pop old tires on it that you can't use for the road anymore - just keep the inner tubes pumped up - but again, because you are not on the road they dont need to be pumped up to the same pressure.