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GLS,

If you do read this post and are not able to explain, could you please pass this message on to someone who would be able to? Thanks!

My question is:

AC suggests chainging the gear/chain set-up from the stock 22/41 72P chain(.536 ratio) to a 20/39 70P chain(.512 ratio) for 5000+ ft. When I figure out the gear ratio difference between the 2 gear combonations, the end result seems to be very minimal($140.00 later). Is the suggested gearing change that is published under the hood of the F7's indeed correct and could you please explain in some detail why it is such a small difference in ratios if the published information is correct??

Thank you very much.
-John
 
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