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53/39 VS 50/34

  • 17-03-2012 10:23pm
    #1
    busyliving
    Registered Users, Registered Users 2 Posts: 1,428 ✭✭✭


    Hey all

    I'm just wondering what is the actual difference between the teeth numbers on the crankset...

    53/39 and 50/34...

    Can you explain what each of these mean in terms of riding the bike?


Comments

  • #2
    Beasty
    Administrators, Social & Fun Moderators, Sports Moderators Posts: 78,393 Admin ✭✭✭✭✭Beasty


    A 53 is 6% higher gearing than a 50 (53/50-1)
    A 39 is 14.9% higher gearing than a 34 (38/34-1)

    To put it in perspective, a 17 on the back is 6.25% higher than a 18 and a 14 is 14.3% higher than a 16, so it's similar to comparing those gears on the cassette


  • #3
    dermur
    Registered Users, Registered Users 2 Posts: 238 ✭✭dermur


    Take a look at this thread...

    http://www.boards.ie/vbulletin/showthread.php?t=2056576610


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