This is a bike project that I completed a few months ago .... I set it up for approximately 55/75 gear inches.. I ride this bike quite a bit in moderately hilly Marin county .. the ratio works out about perfect for me allowing cruising speeds in the 16 to 20 mph range.

Old Douglas Titanium road frame.



Sort of rare Sachs Duomatic 2 speed Automatic hub from 40 years ago modified to shift at 14mph at a cadence of approximately 90rpm.



Forward Components EBB kit in stock 68mm BB for chain tension adjustments.