After moving from west Texas, with mild winters and roads with wide shoulders, to rural Southern Kentucky, with long winters and roads with steep ditches instead of shoulders, it was time to start riding inside. My search for bike trainers left me feeling poor as it was hard to find one for under $100. With more time and tools than money I decided to build my own trainer.
The total cost of this project was about $30 because I used scrap wood and found a free fan in a friend’s junk pile. If you go out and buy all the parts new you might as well buy the trainer it will save you time and headache. But if you are low on cash, have spare time and don't mind "recycling" old stuff this Instructables is for you.
This project could also be used to make a Bike Powered Generator. Simply substitute the fan for a pulley and v-belt connected to an electric motor or a car alternator.