I've got a Jamis Aurora touring bike that I've been riding and modifying for a number of years. It has been on many an overnight camping trip but is currently hauling my 40 pound kid and commuting gear.
It came with a triple 9 speed setup from the factory using a mix of FSA crankset, Shimano Tiagra up front, and Shimano XT in the rear. Parts have been replaced over the years and I converted it to a flat bar build and 650b with wide tires and this is what it is currently equipped with:
Shimano 9 speed 11-34 cassette
Shimano XT RD-M772 rear derailluer
Shimano Tiagra 50/39/30 FC-4503 crankset
Shimano Tiagra FD-4503 front derailluer
Shimano XTR SL-M970 3x9 shifters
I'm wondering how I can get some lower gearing without sacrificing the high end too much. I see there are many triple cranksets that have a wider range than 20T (e.g. 24T here:
https://velo-orange.com/products/gra...kset-24x34x48t) but wondering if my rear derailluer could handle that and if I would need a new FD too. Alternatively if people have had any success with 36T cassettes with the XT rear derailluer.
