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Old 10-25-20, 04:49 AM
  #8  
WheelsNT
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Join Date: Nov 2011
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We have a multi-seat bike with 12, 10, 6, and 4. 12 and 10 are on 170s with no problems. Maybe you don’t have as big a problem as you think? If you only need to address the 8-year-old, that’s only one set of cranks to deal with.
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