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@Jonesy123100
Hi I'd like to set up a fixie with two chain rings and a rear hub with two fixed sprocket. I wanna achieve a high and low gearing. Was wondering how you can calculate which gearings will work with the same chain length. I know this can be done I met someone a while back who had done it but can't remember what ratios he used. Also Shelton brown mentions it but they aren't the ideal gearings I want. Cheers