I just got my new XTR crankset today in the mail.......and realized I got the 170mm cranks. Other than being 168 grams lighter than my existing 175mm ones- does a quarter-inch(5mm) of less pedaling leverage make me slower? Will the reduced rotating mass compensate the shortened crankarm length? Or, is the difference barely noticeable? I wanna try them first- because they are crazy light. Please help.....before I put these on!!!
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Thread: Did I Make A Big Mistake?