Thread: GRX upgrade question
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Old 06-04-21, 11:20 PM
  #11  
Racing Dan
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I would just get a rd-rx400 and a 10s 11-36 cassette. If need be a fc-rx600 crank and the matching fd-rx400 to get even lower gears. Much cheaper and compatible with the tiagra STI brifters.
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