Amazon.com : Pedal Generator 300W Foot Powered Power Generator Portable Emergency Power Supply Exercise Bike Generator Brushless High-Power Power Generation Can Be Modified,Style-1 : Patio, Lawn & Garden
DIY Bike Generator : 13 Steps (with Pictures) - Instructables
How to Build a Practical Household Bike Generator | LOW←TECH MAGAZINE
350W 12V Low Speed Rare Earth Brushless Permanent Magnet Generator For DIY Stationary Exercise Bike Generator, With Stablizer