Old 01-10-12, 12:26 PM
  #5  
BlazingPedals
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Join Date: Dec 2004
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Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, homebuilt recumbent

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If you're asking why front chainrings are 39T instead of 44T, the answer is "marketing." If you're asking why they aren't 13T, then you need more help than you're gonna get here.
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