So folks who say they are Green, or Green is Great, I ride my bicycle for excercise, it is not a GREEN VEHICLE. Here is why: 1. Tires are made of Kevlar & Rubber. 2. Tubes in Tire are Butal Rubber made with Sap from a Ribber Tree, that is refined, work, then you have machines that make the Tubes. 3. Tubes have presion made stems made from Metal, again made in factory's with machine tools. 4. Last we have Caps to cover fill values, made of Plastic that is by product of Oil. 5. Frame is Carbon Fibre, made from many product including synthetics, and petro chemical. 6. Fork is Alumium, and it took many machines to manufacturer. 7. Groupo is (Derailers, Casette, Chain, Crank Arms, Hubs, Stem, Handle Bars, Seat Post, Bearings, Misc Nuts, Bolts, Screws, Grease, Oil, Cables etc.) all took machines to manufacturer. 8. Seat/Saddle is Leather, Synthetic Frame, and last Metal Rails. Again it took machines to manufacturer. Point is my Bicycle might not burn any energy to operate, uses Gas, Oil, or Electricity to operate, just Peddle power. Joe's Solar Panels, and Windmills can not produce the energy to build this simple product a Bicycle. If you want to do the REAL DEAL GREEN THING I SUGGEST THE FOLLOWING. Get out of town, go to areal rural area, shed your clothing, take a small pocket knife, and fire starter. Your are allowed two items. Do the Naked & Afraid thing. Build a shelter, live of the land, and do the cave man thing. Enjoy your adventure. BTW there will be no medic to call, no producer to say I want to go home. Your on your own, have fun, enjoy the TRUE GREEN LIFE STYLE.