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added sram, chainring, and compatibility tags. Some minor wording changes to smooth out question.
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Ted Hohl
Ted Hohl
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ConvertI would like to convert SRAM Power Spline with 50/34 POWERGLIDE chainrings to a 50/30 T combo. It has 110mm so will not accept 30T.
  What crank assembly/bottom bracket and chainrings should I use to replace the current crankshaft with? This is a Specialized Ruby 2012?.

Convert SRAM Power Spline with 50/34 POWERGLIDE chainrings to a 50/30 T combo. It has 110mm so will not accept 30T.
  What crank assembly/bottom bracket and chainrings should I use to replace the current crankshaft with? This is a Specialized Ruby 2012?

I would like to convert SRAM Power Spline with 50/34 POWERGLIDE chainrings to a 50/30 T combo. It has 110mm so will not accept 30T. What crank assembly/bottom bracket and chainrings should I use to replace the current crankshaft with? This is a Specialized Ruby 2012.

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Ragnar
Ragnar
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Specialized Ruby 2012 replacement Front Crank/Chainring/Hub

Convert SRAM Power Spline with 50/34 POWERGLIDE chainrings to a 50/30 T combo. It has 110mm so will not accept 30T.
What crank assembly/bottom bracket and chainrings should I use to replace the current crankshaft with? This is a Specialized Ruby 2012?