Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Mentioned: 11 Post(s)
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Be sure the SRAM hub doesn't have a minimum gear ratio specification, i.e. the smallest chainring/largest cog combination they recommend. If you gear it too low there is a possibliity that the excess torque could damage the internal gearing.
BTW, 19.5 gear-inches is REALLY low. Do you need a still lower gear?