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  1. #1
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    New question here. I just need to know one thing about "Magic Ratio"

    Does this mean that its going to be too loose? Or is it close enough to work?
    Thanks
    Don't worry about the other ratios. That's just me messing around. I'd really like to get that 33x19 on my bike.
    Attached Thumbnails Attached Thumbnails I just need to know one thing about "Magic Ratio"-magic_ratio.jpg  

    The unexamined life is not worth living - Socrates
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  2. #2
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    Re: I just need to know one thing about "Magic Ratio"

    Cant see x axis but I suspect it would work with a new chain and eventually get too loose. Maybe a half link would help.
    Yeah I only carry cans cause I'm a weight weenie.

  3. #3
    one chain loop
    Reputation: fishcreek's Avatar
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    Left side of the shade means tighter. I have used this program countless times.
    everything sucks but my vacuum cleaner.

  4. #4
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    Sorry. Here's a better pic. My chainstays are 17.5 inches. I might even go with the 30x18 combo if I can find a 30t ring.
    Attached Thumbnails Attached Thumbnails I just need to know one thing about "Magic Ratio"-new_magic_ratio.jpg  

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  5. #5
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    Quote Originally Posted by fishcreek View Post
    Left side of the shade means tighter. I have used this program countless times.
    So you thinking no? Or maybe with a worn chain?
    The unexamined life is not worth living - Socrates
    Bearded Women Racing

  6. #6
    one chain loop
    Reputation: fishcreek's Avatar
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    i find the program more accurate if i use metric and your measurement spot on to the nearest mm.

    i use 0.01 value on chain stretch even on a new chain.

    then i look at the combos to the left same as you do, and work from there.

    i wouldn't commit on buying something if i'm not sure if its going to work, so try those combos first.
    everything sucks but my vacuum cleaner.

  7. #7
    one chain loop
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    p.s.

    the reason i look at the combos to the left side (tight side) is because i use diy eccentric axle. i just rotate the axle when the magic ratio is getting slack.
    everything sucks but my vacuum cleaner.

  8. #8
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    Quote Originally Posted by fishcreek View Post
    p.s.

    the reason i look at the combos to the left side (tight side) is because i use diy eccentric axle. i just rotate the axle when the magic ratio is getting slack.
    Tell me more about this diy axle. Is it like grinding the sides flat on the axle?
    The unexamined life is not worth living - Socrates
    Bearded Women Racing

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