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Old 11-08-07, 11:39 AM
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staehpj1
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How about just using two rings on the front with some kind of chain tensioner? You could use a front derailleur or not.

I have to ask. Why would you want to do this? Yes it is possible, but... It would be so much more pleasant with proper gearing and you would also be at a much lower risk of having joint problems.

I strongly recommend the equivalent of at least a 32 tooth on the back and 26 tooth on the front. A bit lower would be even better.

Food for thought...
I met a nice very athletic young man on my TransAmerica this Summer. He insisted on using typical road bike gearing. We kidded him that he would never make it without destroying his knees (I actually thought that his youth would get him through it OK). He was in great shape and seemed able to handle it. He went home with a badly screwed up knee after 1200 miles. He has since had surgery and is trying to get recovered enough to try again in 2008. I am willing to bet he will have lower gears this time
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