Originally Posted by
Leebo
The 64/104 bcd should work? 22 ( 32/34/36) and a 46/48.
Sure, there are MTB/trekking cranksets like that which give a pretty wide range but generally to get the nice low gear one ends up with a top gear where one will quickly spin out on big descents, esp with 559 or 584 wheels. I'm not trying to set speed records but on a long descent it can be nice to pedal at a moderate cadence, if only to keep the blood circulating.