gear ratio question

greigcluck
greigcluck Posts: 125
edited January 2009 in Commuting chat
is there any difference apart from chain wrap between 32-12, 2.6-1 and 42-16 givin you about the same 2.6-1?

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  • ride_whenever
    ride_whenever Posts: 13,279
    not really, you could even go down to 26 11 with one of those natty half link chains that can wrap even tighter...
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  • Clever Pun
    Clever Pun Posts: 6,778
    bigger cogs = less wear
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  • nicklouse
    nicklouse Posts: 50,675
    bigger cogs = more chain and more weight. :wink:
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  • Bassjunkieuk
    Bassjunkieuk Posts: 4,232
    I thought you got a BIG RING through increased wear :shock:

    Sorry, but I had to get a comment like that out before GregT :-)
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  • rb1956
    rb1956 Posts: 134
    greigcluck wrote:
    is there any difference apart from chain wrap between 32-12, 2.6-1 and 42-16 givin you about the same 2.6-1?
    Small sprocket sizes lead to relatively lower efficiency by increasing forces in the chain and thus sliding friction between the links. If you don't mind paying for it, there is a paper from the Department of Mechanical Engineering at Bristol University on the subject available here.

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