My old friend Load VS Torque. When looking into building a turbine of any description you must consider the Torque that will be created when you start taking your electricity Load from the turbine. This is the main reason for the larger chain setup with the large generator hub. When I used washing machine motors I could use bicycle parts but when I started using these bigger motors as generator hubs I found the bicycle sprockets would only last a week or less so I started to use the motorbike sp