i'm not sure if one at the front and nine at the back would work.. it would require super accurate chainring positioning (with right bb spindle length) but the chain would be seriously bent at the two ends of the range. i think it'd be easier to install a front derailer and have a conventional 2x9
i'm not sure if one at the front and nine at the back would work.. it would require super accurate chainring positioning (with right bb spindle length) but the chain would be seriously bent at the two ends of the range. i think it'd be easier to install a front derailer and have a conventional 2x9