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Message: <blockquote data-quote="psuggmog" data-source="post: 52077"><p>I just had to try out the quote function Great flow of information here. There are a few more factors at work here. I'm still lookin' for that free lunch but it ain't happening. The thing about levers is that there is a trade off. The longer the lever, the less force required at the end of the lever to move said load, but the tradeoff is more motion is required. Also the engines have a torque curve where the engine develops maximun horsepower and torque at certain revolutions per minute. It takes lots of power to get something at rest moving and the less to kept it moving. The gearing makes this possible if it falls within the operating range of the engine. In the case of friction drive vs chain drive the coefficient of friction between the driveroller and the tire plays a big part(ever tried to use one in rain ar sleet?)</p></blockquote><p></p>

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